M: Mom, I want a puppy. ,F: Let me think about it. ,M: Why do you have to think about it? ,F: Because puppies cost money. ,M: No, they don't. Puppies are free. ,F: Yes, but puppies need their shots. ,M: Shots for what? ,F: So they won't get sick, just like why you get your shots.
(A) M: No problem. If you agree with me to have a pet, I will  but the shots for it. (B) M: Yeah, grandma, it wouldn't cost any, so do you agree with me to have a puppy? (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: Ok, we don't need to buy shots and I will buy some vegetables to them.
A