TOEFL Listening: TPO-TOEFL听力TPO - 25QL1YB_O__1U2S1R$

What can be inferred about the professor when she says this: A. She expects the student to provide an answer to her question B. She is surprised by the student's question C. She thinks that she knows what the student was going to ask D. She expects other students in the class to express their opinions