NO.PZ2023021601000070
问题如下：
All of the following are reasons that an apparent deviation from the efficient market hypothesis might not be anomalous except:选项：
A.The abnormal returns represent compensation for exposure to risk. B.Changing the asset pricing model makes the deviation to disappear. C.The deviation is well known or documented.解释：
Bubbles and crashes are well-known and well-documented phenomena yet represent market anomalies.这题麻烦讲abc选项都解释一下
