问题如下：
The company claims to comply with GIPS:
选项：
A.may be performed on a department alone.
B.requires for a company to announce publicly.
C.should issue the verification report for the entire firm.
解释：
C is correct.
It is optional for firms to verify GIPS compliance, but if them choose to find an independent third party to do the verification, it needs to be performed for the entire firm, not a just part of the firms.
B为什么不对？
难道不用公之于众吗
