F: Ralph, my stomach aches. ,M: Mine too, honey. ,F: I think it was the fish or the meat we ate in the restaurant. ,M: It might have been. ,F: Or the soup. ,M: No, it couldn't have been the soup. Because I didn't have any. Little Jimmy had some and he's alright. ,F: Of course, we sat in the sun for a long time, but I suppose it couldn't have been the sun. ,M: That's true. Now what else did we both eat? Only those lovely apples I bought at the market. It could have been them. We used to eating apples and you wash them. ,F: No, I didn't. I thought you have. ,M: Jennie, I didn't wash them. I was sure you did. It must have been the apples then. Oh, I feel worse now. Let's go see a doctor.
(A) F: Yes. I am sure that the fish is the reason why we have stomachache. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: I don't think the apples is the reason. I had washed them before we had them. (D) F: I am sure the apples is the reason. We should go to the hospital now.
D