听力原文：M: Hi, I am going door to door tonight to tell people about the student action union. Do you have a few minutes？
W: Sure. You know, I think I read something in the newspaper last week.
M: Yeah, there was an article about us since the last issue. See, we are trying to protect some of the open spaces on campus.
W: That's right. You are the group that is opposing the extension of the parking lot next to Smith Hall, right？
M: That's us. We just feel it is important to save some of the natural beauty of the campus, like those precious trees. Some of those trees are hundreds of years old.
W: It is a pretty place. My friends and I had picnics over there.
M: Then you understand how we feel. We are organizing a meeting on Thursday afternoon to get the administration to reconsider the parking lot plan.
W: Well, I have a class on Thursday afternoon.
M: But maybe you could sign your name on this paper. We're going to summit it to the administration to show how the students feel about this.
W: Sure, let me get a pen and I'll sign it.
M: I have a pen right here. And let me leave you this handout about the student action union. Maybe you could come to some of our meetings. We get together once a month.
W: Yeah, I'd like to know more about your group. Let me know when the next meeting is and I'll try to be there.
(23)

A. From the newspaper.
B. From her classmates.
C. From her friends.
D. From the man.