Why does the student speak to her professor?

Questions 1 through 3. Listen to a conversation between a student and a professor.
W: Professor Wilson, can I ask you something?
M: Sure.
W: What I’d like to do for my survey project is interview three people. Would that be OK? Because in class you said a survey is usually done with a large number of people.
M: That’s right, it is. But tell me about your idea.
W: My idea is to interview three people in my host family. There’s a grandmother who has a lot of opinions—oh, about everything. I want to compare what she says with what the mother says, and also the fourteen-year-old daughter. Would that be all right? M: It’s a start, but what would your focus be? You said the grandmother has opinions about everything—opinions about what?
W: It’s a philosophy of life, I guess.
M: Here’s my suggestion. Why don’t you prepare a list of questions—maybe five, six—no more than ten possible ideas for your interviews. When you’ve done that, show me the list, and we’ll go from there.
W: All right. I’ll work on it tonight. Thanks for the advice.
M: You’re welcome.
1. Why does the student speak to her professor?
2. What is the student’s idea for her project?
3. What does the professor suggest the student do?