此题为一道很典型且常见的人物关系推断题。

此题为事实细节题。从男士所说的 “It must have been the apples then.” 不难得出正确答案为A。

【听力原文】
W：Love.my stomach aches.
M：Mine too，honey.
W：I think it was the fish or the meat we ate in the restaurant.
M：It“ght have been.
W：Orthe soup.
M：No，it couldn’t have been the soup because I didn’t have any.LittleJimmy had some and he’s all right.
W：Of course we sat in the sun for a long time but I suppose it couldn’thave been the sun.
M：That’S true.Now what else did We both eat?Only those lovely apples Ibought at the market.It couldn’t have been them.Were you sdU eatingapples and you washed them?
W：No，I didn’t.I thought you had.
M：Oh，Jenny，I didn’t wash them，I’ve thought you did.It must havebeen the apples then.Oh.I feel worse now.Let’S go see a doctor.

【解析】
此题为简单的推断题。从男士所说的最后一句话 “Oh, I feel worse now. Let’s go see a doctor.” 可见接下来他们要去医院看医生。