[单项选择]is this supermarket far
A. Yes.
B. No.
C. Doesn’t say.

Supermarket’s New Strategy
One supermarket in Tokyo has managed to solve the problems of shoplifting, mistakes by cashiers, and long lines of customers waiting at the cash registers. It is Japan’s advanced computer technology that has come (51) with the answers.
Shoppers at an OK supermarket on the outskirts of the city now push a cart (52) a plastic card chained to it and buy from glass cases where the goods are on display. The plastic card has a magnetic number imprinted on it. Each customer carries his or her own card, which is (53) at the exit. While shopping, the customer pushes the card into a slot beside whichever items are wanted and pushes a button or two. The glass covered vending machines are connected to a computer that (54) the price of every item in the store. Prices of every purchase are added up automatically. (55) she has finished shopping, the customer hands her card to a cashier who (56) <
A. turn
B. make up
C. set
D. change