Option D, taking turns looking at several people.
I'll go over why the other three options are bad ideas.
Option A and B do maintain eye contact, but it'll be inferred by the audience that you're looking at solely one person.
It's pretty obvious that Option C is a terrible idea, since the point of maintaining eye contact is to be looking at your audience.
The reason Option D is the best choice is because it keeps the audience engaged. By looking around a room, your audience will infer that you're addressing everyone in the room.
-T.B.
Answer: C (happiness and delight)
Explanation: The children are clearly smiling (a sign of happiness) while reading the books. They're enjoying it. Also, I took the test and got it correct.
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