Q.In which mode of e-Learning do the teacher and the learner interact at the same time in real time, even though they are in different places?

The key is timing — whether teacher and learner are active together at the same moment, as in a live online class.

Synchronous e-Learning is learning in which teaching and learning take place at the same time, in real time, so the learner can interact immediately — as in a live online class, virtual classroom or webinar — even though teacher and learners are in different places.

Option-by-option analysis:

• (a) Incorrect — asynchronous e-Learning happens at DIFFERENT times, with content studied later (e.g. a recorded lesson).
• (b) Correct — same-time, real-time interaction is synchronous e-Learning. …

Mixing up 'synchronous' with 'asynchronous'. Remember: synchronous = same time (live class); asynchronous = …