单选题 What is the main(主要的，总管道)idea of this passage?

A、 The prices of shoes and boots were greatly reduced on the first day of the sale.
B、 Many people came to the store on the first day of the sale.
C、 Much business(生意) was done at the store on the first day of the sale.

【正确答案】 C

【答案解析】从一个女士都能够把她的旧鞋给卖掉，可以看出文章的主要意思是生意非常好。