In "quick-response" manufacturing, the manufacturer receives electronic feedback directly from retailers about which models, patterns, or styles are selling, and in what quantities. This feedback triggers the manufacture of further batches to replenish stocks of articles that have been sold. The advantage for retailers is that they are freshly stocked with just those articles that are most likely to sell.
For quick-response manufacturing to work to the retailer’s advantage in the respect mentioned above, which of the following must be true

A．The cost per piece of manufacturing various articles in small batches exceeds the cost per piece of manufacturing large quantities of those articles.

B．The equipment necessary to provide the direct feedback is different from the equipment that supports conventional inventory control.

C．Consumers do not patronize a store that does not stock the model, pattern, or style that they prefer.

D．Consumers can distinguish retailers that rely on quick-response manufacturing from retailers that do not.

E．(E) Consumers do not suddenly stop buying models patterns, or styles that have just become popular.

给算式添上括号，使运算顺序为：除→减→加→乘5+7÷0.5-2.4×2．