问题
Do you know _______ ——I’m not sure. Maybe an artist.
A:what the man with long hair is
B:what is the man with long hair
C:who the man with long hair is
D:who is the man with long hair;
B:what is the man with long hair
C:who the man with long hair is
D:who is the man with long hair;
正确答案是：
