单项选择题

Questions 14 -16 are based on a conversation on what the woman will do on this Saturday. You now have 15 seconds to read Questions 14 -16. Why can’t they watch a movie at home in the evening

A.Because Susan’s mother will not allow them to watch a movie.
B.Because Susan has to finish her history assignment.
C.Because Susan has to cook for the family.
D.Because Susan’s video machine is broken.