问题：
[单选题]Which of the following statements is (are) true?
I) Risk-averse investors reject investments that are fair games.
II) Risk-neutral investors judge risky investments only by the expected returns.
III) Risk-averse investors judge investments only by their riskiness.
IV) Risk-loving investors will not engage in fair games.
AI only
BII only
CI and II only
DII and III only
EII, III, and IV only
答案解析：