行为人在实施不纯正不作为犯罪时，其罪过( )。

A．只能是故意

B．只能是过失

C．既可以是故意，也可以是过失

D．只能是间接故意

Speaker A: I’d like to check in, please.
Speaker B: （）。

A. Certainly. Do you have a reservation

B. Sorry, I don’t see what you mean.

C. Sure, I can help you with the checking.

D. Thank you, we provide first class service here.