Answer:
Expository informs or explains, uses a topic sentence and supporting details.
Narrative tells a story, uses spatial order. Descriptive paints a picture with words, uses chronological order.
Well, it depends on what kind of situation you're in. But the best advice is to handle it the best you can. If you really have no idea how to improvise in the situation, search on the internet to see if other people have experienced what you're going through, and follow some advice that would seem like it would really help in your situation.
Answer:
b. He asked if I would help him with that essay as he would have to hand it in the tomorrow.
It is the point of view of a third person.