单项选择题
W: What a wonderful performance! Your rock band has never sounded better.
M: Many thanks. I guess all those hours of practice in the past month are finally paying off.
Q：What does the man mean
A．The rock band needs more hours of practice.
B．The rock band is going to play here for a month.
C．Their hard work has resulted in a big success.
D．He appreciates the woman’s help with the band.