问题
girls 40. them like dancing.
A: number of , is; the number of
B:The number of, is ；A number of
C:The number of, are; A number of
D:A number of, are; the number of;
B:The number of, is ；A number of
C:The number of, are; A number of
D:A number of, are; the number of;
正确答案是：
