问题

I think _______ask Tim for some advice.—_______. Last time when I turned to him, he refused to help.
A:you'd rather; I think so
B:you'd better; I'd rather not
C:you have to; I'd rather not
D:you'd better; I think so;
B:you'd better; I'd rather not
C:you have to; I'd rather not
D:you'd better; I think so;
正确答案是: