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 are the two people talking about in this conversation

A．To confirm that the student is capable of beating Clement.
B．To show how sincere he is.
C．To give an example of how to run fast.
D．To make a joke about the student’s comment.

[A] pour scorn on
[B] heap praise upon
[C] give vent to
[D] cast light upon