F: It is your grandmother's birthday this Sunday. You and Sally should visit her. ,M: OK, I will call my sister and make a plan to go together.
(A) F: OK, you really need to visit your grandmother. (B) F: Since it is your grandmother's birthday this Saturday, let's talk about planning a birthday party. (C) F: I am really sorry, I did not catch that. Would you slow down, please? (D) F: OK, you really need to visit your grandmother because it is your grandmother's birthday this Saturday.
A