单项选择题

W: I heard that your son’s working part-time at a department store.
M: Yes. He works Monday, Wednesday and Friday from 3 to 7 and all day Saturday.
W: Wow, he seems to have a busy schedule.
M: Sure he does.

Which day does the man’s son not work()

A. Monday, Wednesday and Friday.
B. Saturday and Sunday.
C. Tuesday, Thursday and Sunday.
D. Monday, Friday and Saturday.