There Is a Tradeoff Between Risk and Return (I

There is a tradeoff between risk and return (i.e.,to earn higher returns you generally have to take more risk) because ________.

A) investors like risk and return and want more of both
B) investors are risk averse,so they will not accept riskier investments unless they offer higher returns
C) to earn higher returns you have to make bigger investments and bigger investments are always riskier than smaller ones
D) investors care about returns but not about risks