NO.PZ2018053101000031
问题如下：
Which approach is most commonly used by equity hedge strategies?
选项：
A. Top down.
B. Bottom up.
C. Market timing.
解释：
B is correct. Most equity hedge strategies use a bottom-up strategy.
A is incorrect because most equity hedge strategies use a bottom-up (not top-down) strategy.
C is incorrect because most equity hedge strategies use a bottom-up (not market-timing) strategy.
如题..........
