a)it gives a 30% discount to all customers.
b)it is run by mrs. winter's husband.
c)it hires mrs. winter as an adviser.
d)it encourages husbands to shop on their own.
m：mrs. winter, i need your advice, i want to buy a dress for my wife, can you tell me where i can get one at a reasonable price?
w：sure, go to richard's.it has the latest styles and gives a 30% discount to husbands who shop alone（款式最新，而且给独自购物的丈夫们7折。）
q：what do we know about richard's shop?