第四个为什么正确a，report这里怎么理解

问题如下：

Which of the following characteristics about an exchange is incorrect?

选项：

A.

An exchange has responsibility to design contract terms.

B.

An exchange usually negotiates prices between counterparties.

C.

An exchange gives an opportunity for price discovery.

D.

An exchange provides various reporting service to trading participants.

解释：

B is correct.

考点：exchange

解析：Negotiate prices是OTC市场的特征。Exchange制定合约的价格和条款，是提供价格发现的渠道。