用另类投资和diversification有关，怎么和A中更高的历史业绩关联上的呢？
No.PZ2021050706000026 (选择题)
An investor is most likely to consider adding alternative investments to a traditional investment portfolio because:
您的回答B, 正确答案是: A
A of their historically higher returns.
B of their historically lower standard deviation of returns.
C their inclusion is expected to reduce the portfolio’s Sharpe ratio.
