NO.PZ2024010508000028
问题如下：
Why have ESG index funds been criticized as being more active than they are made out to be?选项：
A.They have lower costs than traditional index-based strategies.
B.The opaque methodology and construction of ESG indexes may include space for human judgment and bias.
C.Index inclusion may create crowding and overvaluation in specific
解释：
B is correct. The methodology behind ESG indexes is developed based on ESG datasets that lack history, comparability, and completeness. Judgment and interpretation are therefore required to construct the indexes, which may introduce bias.没理解，求解b答案理解
