【单选题】

In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow.

Questions 1 to 3 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.
How does the woman explain the procedureA．By referring to the handbook for the procedure.
By quoting what the professor had said about it.
C．By giving examples of her procedures.
D．By comparing it to the old procedur