问题如下：
Listed below some differences between private and public equity firms, which is most accurate?
选项：
A.Private equity firms focused more on short-term performance than public firms did.
B.Private equity firms' regulatory cost and investor relations cost are lower than those of public firms.
C.Private equity firms are incentivised and more willing to work with investors on governance and compensation than public companies.
解释：
B is correct.
Private equity firms' regulatory and investor relations cost less than public companies. There is no stock trading, regulation or shareholder involvement in private equity, which can be high for public companies.
请问C为什么不对？
