Which of the Below Statements Is TRUE

Which of the below statements is TRUE?

A) A particularly useful way to quantify the uncertainty about the portfolio return is to specify the probability associated with each of the possible future returns.
B) The expected return is simply the mean or average of possible outcomes without regard to each outcome's probability or weight.
C) One measure of risk is the extent to which possible future portfolio values are likely to diverge from the last value.
D) If risk is defined as the chance of achieving returns lower than expected, it would seem logical to measure risk by the dispersion of the possible returns above the expected value.