In addition to providing round-the-clock global access to all kinds of products and services, B2C firms often attempt to build ( ) with their customers. A.short-term relationships B.great relationships C.long-term relationships D.good relationships

In addition to providing round-the-clock global access to all kinds of products and services, B2C firms often attempt to build ( ) with their customers. A.short-term relationships B.great relationships C.long-term relationships D.good relationships

正确答案：C