单选题 Customer: How much are the eggs?
Saleswoman: ______
A. They are free-range.
B. We have some free-range eggs.
C. The free-range eggs cost more than regular ones.
D. The free-range ones are $ 3.95 a dozen.

【正确答案】 D
【答案解析】[解析] 可以判定对话发生在市场。A和B都与问题不相关，C不全面。