问题如下：
Which of the following types of risk is most likely avoided by forming a diversified portfolio?
选项：
A. Total risk.
B. Systematic risk.
C. Nonsystematic risk.
解释：
C is correct.
Investors are capable of avoiding nonsystematic risk by forming a portfolio of assets that are not highly correlated with one another, thereby reducing total risk and being exposed only to systematic risk.
对冲策略可以消除系统性风险，多元化组合可以减少非系统性风险，对吗？