单项选择题

SECTION A CONVERSATIONS In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow. Questions 1 to 4 are based on the following conversation. At the end of the conversation,you will be given 20 seconds to answer the questions. Now listen to the conversation. Which of the following does Cecilia initially forget to tell Mark

A.Her phone number.
B.The location of the apartment.
C.The best time to call her.
D.Her first name.