问题如下图：
选项：
A. 
B. 
C. 
解释：
这题考点是啥？另外为何不是risk based，一个factor不应该个risk factor么？谢谢🙏
NO.PZ201809170400000302 return oriente versification oriente B is correct. McMahon suggests ththe fountion follow a passive factor-basemomentum strategy, whiis generally finethe amount of a stock’s excess prireturn relative to the market ring a specifieperio Factor-basemomentum strategies are classifiereturn oriente Passive factor base和active factor base的分別是什麼呢？ 就是像 和 不像 inx 的分別嗎 像就passive?謝謝
factorbase不应该是risk oriente
