NO.PZ2023080903000010
问题如下：
An investment manager’s net return is
选项：
A.an appropriate measure for evaluating and comparing the investment skill of asset managers
a return that accounts for (i.e., deducts) all managerial and administrative expenses
a return that accounts for (i.e., deducts) all trading expenses
解释：
Net return is a measure of what the investment vehicle (e.g., mutual fund) has earned for the investor. Net return accounts for (i.e., deducts) all managerial and administrative expenses that reduce an investor’s return.
好像是英文句子没理解明白， account for 是扣减的意思吗？要怎么理解？
请老师翻译下三个选项的意思，谢谢
