单项选择题

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.

Why does Johnny look unhappy

A.He doesn’t like Jenny.
B.He doesn’t know what is body language.
C.The customers prefer Jenny to him.
D.The customers often go to him instead of Jenny.