单项选择题

[听力原文]
M: Do you know Professor Sam’s brother
W: I’ve never met him. but I’ve heard that he’s famous.

What conclusion can be drawn from the woman’s reply()

A.She has not heard of Professor Sam.
B.She is a good friend of Professor Sam’s.
C.She has not heard of Professor Sam’s brother.
D.She does not meet Professor Sam’s brother.