Speaker A: Can I use your pen? Mine is broken. Speaker B: I guess I have one on my desk.__
Speaker A: Can I use your pen? Mine is broken. Speaker B: I guess I have one on my desk.______
A.No, you can" t.
B.I"m quite sure of that.
C.Let me check.
D.Believe me or not.
请帮忙给出正确答案和分析,谢谢!