【单选题】

{{I}}Questions 7 to 10 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.{{/I}} Which of the following is true, according to the conversation

A、They are reading a letter fromArthur.
B．They are reading a letter from JackBredo.
C．They are talking about a letter fromArthur.
D．They are talking about a letter from JackBredo.