Questions 4 to 6 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. What is exactly the problem that Jack is faced with at the moment
A．He is not as successful as Maggie expects. B．He fails to make a commitment to himself. C．He is not ready to accept the downhill fact. D．He is denied the possibility of getting married.