Q.A student is building a simple website for her school with a Home page, an Admissions page, and a Contact page. She wants

The student has two needs — one consistent appearance shared across several pages, and a clickable way to move between pages — each of which maps to a specific web feature.

The case describes two separate needs, each solved by a specific feature.

(a) Same colours and fonts on every page with minimum effort — the right tool is external CSS. She writes all the styling once in a single .css file (say style.css) and links it into every page with a <link> tag in the <head>:

<head>
  <link rel="stylesheet" href="style.css">
</head>

Because all three pages share the same file, they automatically look identical, and if she later wants to change a colour she changes it in one place and every page updates. (Inline or internal CSS would force her to repeat the styling on each page, which is more effort and risks inconsistency.)

(b) Jumping from the Home page to the Admissions page with a click — the right tool is a hyperlink made with the anchor tag <a>, whose href attribute points to the Admissions page:

<a href="admissions.html">Admissions</a>

Clicking the word "Admissions" then opens the admissions.html page.

Students sometimes suggest copying the same internal CSS into each page for consistency — that defeats 'minimum effort' and risks the pages drifting apart; external CSS is the correct choice because one file styles all pages at once.