单项选择题

Directions:
There are ten short incomplete dialogues between two speakers, each followed by four choices marked A, B, C and D. Choose the answer that appropriately suits the conversational context and best completes the dialogue. Mark your answer on the ANSWER SHEET by drawing with a pencil a short bar across the corresponding letter in the brackets.
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.