问题

The boy is crazy _______ computer games. It worries _______ his parents a lot.
A:I’m sorry to hear that.
B:I will. Thank you very much.
C:I have no trouble.
D:I will think it over.;
B:I will. Thank you very much.
C:I have no trouble.
D:I will think it over.;
正确答案是: