Q.Participating in a quiz can be fun as it provides a competitive element. Some educational institutes use it as a tool to measure knowledge level, abilities and/or skills of their pupils either on a general level or in a specific field of study. Identify and analyse popular quiz shows and write a Python program to create a quiz that should also contain the following functionalities besides the one identified by you as a result of your analysis.
• Create an administrative user ID and password to categorically add or modify delete a question.
• Register the student before allowing her/him to play a quiz.
• Allow selection of category based on subject area.
• Display questions as per the chosen category.
• Keep the score as the participant plays.
• Display final score.

Keep the bank as a dict of category → list of {"q", "options", "ans"} dicts and students as user_id → name. Gate add/modify/delete behind an admin ID/password check; force registration before play; let the player pick a category from question_bank.keys(); compare the typed option number with the stored ans, incrementing and showing the score each question, then print the final tally. From analysing shows like KBC, the added features are instant right/wrong feedback and a visible running score. …

Step 1 — Analysis of popular quiz shows

Shows like Kaun Banega Crorepati (KBC) and school-level quiz contests share a recognisable pattern: multiple-choice questions, one category/topic at a time, feedback right after each answer, and a visible running score that builds suspense. From this analysis the additional functionality I chose to add is:

1. Instant feedback — after every question, tell the player whether they were right, and show the correct option if not.
2. Running score display — the score is shown after each question, not only at the end.

Step 2 — Data design (why these structures?)

• question_bank — a dictionary of categories, each mapping to a list of question dictionaries {"q":…, "options":[…], "ans":…}. Categories become menu choices for free (question_bank.keys()), and add/modify/delete are plain list operations.
• students — a dictionary user_id → name for registration.
• Admin credentials are checked before any change to the bank.

Step 3 — The program

ADMIN_ID, ADMIN_PASS = "admin", "quiz@123"

question_bank = {
    "Science": [
        {"q": "Which gas do plants absorb for photosynthesis?",
         "options": ["Oxygen", "Carbon dioxide", "Nitrogen", "Hydrogen"],
         "ans": 2},
    ],
    "History": [
        {"q": "Who built the Taj Mahal?",
         "options": ["Akbar", "Aurangzeb", "Shah Jahan", "Babur"],
         "ans": 3},
    ],
}
students = {}          # user_id -> name

def admin_login():
    uid = input("Admin ID : ")
    pwd = input("Password : ")
    return uid == ADMIN_ID and pwd == ADMIN_PASS

def add_question():
    cat = input("Category: ").title()
    question_bank.setdefault(cat, [])          # new category auto-created
    q = input("Question text: ")
    options = [input(f"Option {i}: ") for i in range(1, 5)]
    ans = int(input("Correct option number (1-4): "))
    question_bank[cat].append({"q": q, "options": options, "ans": ans})
    print("Question added.")

def modify_or_delete(delete=False):
    cat = input("Category: ").title()
    if cat not in question_bank or not question_bank[cat]:
        print("No questions in that category.")
        return
    for i, item in enumerate(question_bank[cat], 1):
        print(f"{i}. {item['q']}")
    idx = int(input("Question number: ")) - 1
    if not 0 <= idx < len(question_bank[cat]):
        print("Invalid number.")
        return
    if delete:
        question_bank[cat].pop(idx)
        print("Question deleted.")
    else:
        q = input("New question text: ")
        options = [input(f"Option {i}: ") for i in range(1, 5)]
        ans = int(input("Correct option number (1-4): "))
        question_bank[cat][idx] = {"q": q, "options": options, "ans": ans}
        print("Question modified.")

def register_student():
    uid = input("Choose a user ID: ")
    if uid in students:
        print("That ID is taken.")
        return None
    students[uid] = input("Your name: ")
    print(f"Registered! Welcome, {students[uid]}.")
    return uid

def play_quiz(uid):
    print("Categories:", ", ".join(question_bank))
    cat = input("Choose a category: ").title()
    if cat not in question_bank or not question_bank[cat]:
        print("No questions in that category yet.")
        return
    score = 0
    for item in question_bank[cat]:            # questions of chosen category
        print("\n" + item["q"])
        for i, opt in enumerate(item["options"], 1):
            print(f"  {i}. {opt}")
        try:
            guess = int(input("Your answer (1-4): "))
        except ValueError:
            guess = 0
        if guess == item["ans"]:
            score += 1
            print("Correct!", end=" ")
        else:
            right = item["options"][item["ans"] - 1]
            print(f"Wrong — correct answer: {right}.", end=" ")
        print(f"Score so far: {score}")        # KBC-style running score
    print(f"\n{students[uid]}, your FINAL SCORE in {cat}: "
          f"{score}/{len(question_bank[cat])}")

def main():
    uid = None
    while True:
        print("\n1. Admin: add question\n2. Admin: modify question"
              "\n3. Admin: delete question\n4. Register student"
              "\n5. Play quiz\n6. Exit")
        choice = input("Enter choice (1-6): ")
        if choice in ("1", "2", "3"):
            if not admin_login():
                print("Admin authentication failed.")
            elif choice == "1":
                add_question()
            else:
                modify_or_delete(delete=(choice == "3"))
        elif choice == "4":
            uid = register_student()
        elif choice == "5":
            if uid is None: …