问题如下：
Genia Yveh, a portfolio manager who wants to construct a composite which complies with GIPS, the composite must :
选项：
A. add portfolios after the composite's performance calculation.
B. have all no-fee-paying portfolios.
C. add all fee-paying and discretionary portfolios which apply to the same strategy, mandate, or investment objective.
解释：
C is correct.
According to GIPS, a composite must determine the portfolios be added before the composite's performance calculation. And all fee-paying and discretionary portfolios should be included in the composite which have the same strategy, mandate, or investment objective.
选项C少了Non-discrentionary，所以不准确吧
