All services in business一such as gift wrapping, delivery, and credit一have some amount of costs associated with them, and these costs must be covered by higher prices.

All services in business一such as gift wrapping, delivery, and credit一have some amount of costs associated with them, and these costs must be covered by higher prices.

A.所有在业务中的服务一一如礼品包装、交付和信贷一一有一些与他们相关的成本，而这些成本必须由更高的价格覆盖。

B.在业务中的所有服务一一如礼品包装、交货和信用一一有一定的成本与他们相关的，这些成本必须包括更高的价格。

C.商业中所有的服务一一如礼品包装、送货以及赊账一一都有相应的成本，而这些成本要靠较高的价格来弥补。

D.业务中的所有服务一一如礼品包装、交付和信用一一都有一些与之相关的成本，这些成本必须由更高的价格抵消。

正确答案是C