问题如下：
Private equity funds are most likely to use:
选项：
A.merger arbitrage strategies.
B.leveraged buyouts.
C.market-neutral strategies.
解释：
B is correct.
The majority of private equity activity involves leveraged buyouts. Merger arbitrage and market neutral are strategies used by hedge funds.
A选项和C选项的merger arbitrage 和 market neutral都是hedge fund所采用的策略，所以只有B选项符合要求。
buyout & venture这两种策略请问能帮忙解释一下什么意思么？
