—How do the shops make money if they sell&n

—How do the shops make money if they sell at such low prices?
—Manufacturers, it seems, are willing to bring down prices _______ big volume purchases.A.under the name ofB.on behalf ofC.in return forD.in preparation for

C解析这题考查词组辨析：A. under the name of 以…的名义，B. on behalf of代表，
in return for做为回报，D. in preparation for做准备，句意是：如果这么低价卖商店怎么赚钱？---好像生产商愿意降低价格做为大量购买的回报。选C。

我也是这个答案