F: Hey Tom, our apartment is so dirty. Let's give it a good cleaning. ,M: Good idea. But first of all we should check everything and see if there's anything we don't need anymore and can throw away.
(A) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) F: Really? You mean it's not a good idea? Okay, let's continue to fix up the garden. (C) F: Okay, I see. As we are cleaning the apartment, let's check everything first. (D) F: Okay, I see. As we are cleaning the apartment, we will check everything finally.
C