Hello, this is Mary. Can I speak to John, please?
- I'm sorry, he's not here right now. Can I take a message?
- Yes, please tell him to call me back. My number is 555-1234.
- Okay, I'll tell him.
What does Mary want John to do?
A) To visit her. B) To call her back. C) To send a message. D) To meet her.