单项选择题

SECTION A CONVERSATIONS In this section you will hear several conversations. Listen carefully and then answer the questions that follow. Questions 1 to 3 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now, listen to the conversation. Whom are the speakers most likely talking about

A.A girl John knows but Becky not.
B.A girl Becky knows but John not.
C.A girl both John and Becky know.
D.A girl neither John nor Becky knows.