NO.PZ2018053101000003
问题如下：
The potential benefits of allocating a portion of a portfolio to alternative investments include:
选项：
A.ease of manager selection.
B.improvement in portfolio risk–return.
C.accessible and reliable measures of risk and return.
解释：
B is correct.
Adding alternative investments to a portfolio may provide diversification benefits because of these investments’ less than perfect correlation with other assets in the portfolio. As a result, allocating a portion of one’s funds to alternatives could potentially result in an improved risk–return relationship. Challenges to allocating a portion of a portfolio to alternative investments include obtaining reliable measures of risk and return as well as selecting portfolio managers for the alternative investments.
另类投资品和的传统的资产之间相关性较低，能提供一个分散化作用；同时另类投资品的历史的收益较高，可以帮助提升整个组合的收益风险关系，所以B正确；A选项，另类投资通常通过主动方式做投资管理，所以较为看重投资经理的研究能力和投资经验，所以A不正确；而C选项，另类投资的风险和收益数据，存在很多偏差，相对不太可靠，所以不正确。
A选项是否可以理解为选择基金管理者较容易？
