Firms choose ______ because they do not have to make cash payments to start business，and can simply receive income in the form of royalty.
A、return
B、offer
C、franchising
D、licensing
【正确答案】：D
【题目解析】：Firms choose licensing because they do not have to make cash payments to start business，and can simply receive income in the form of royalty.参见教材P5。
