问一道题：NO.PZ2018070201000115 [ CFA I ]

NO.PZ2018070201000115问题如下Listeare some reasons for a written investment polistatement (IPS) to create whiis the least important?A.The IPS is createto meet regulatory requirements.B.A portfolio manager’s best practiinclus creating a written IPS.C.A written IPS is createto ensure ththe risk anreturn objectives of client coulaccomplisheC is correct.The written IPS is createfor a client, but it coulnot ensure ththe clients objectives coulfinally achieve不应该选最不相关的么，投资经理的业绩有必要包括么

A portfolio manager’s best practiinclus creating a written IPS. A written IPS is createto ensure ththe risk anreturn objectives of client coulaccomplishe C is correct. The written IPS is createfor a client, but it coulnot ensure ththe clients objectives coulfinally achieve为什么不选B呢？best practi是什么意思

A portfolio manager’s best practiinclus creating a written IPS. A written IPS is createto ensure ththe risk anreturn objectives of client coulaccomplishe C is correct. The written IPS is createfor a client, but it coulnot ensure ththe clients objectives coulfinally achieve 此题C为何不对？谢谢。