Questions 5 to 7 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. The man didn’t put his luggage outside the door on time because
A．he had a hard time packing the suitcases B．he had gone to bed late the night before C．he forgot the time to put his luggage out D．his suitcases were stolen