A Stock Has an Expected Return of 12 Percent and a Standard

A stock has an expected return of 12 percent and a standard deviation of 25 percent.Long-term Treasury bonds have an expected return of 5 percent and a standard deviation of 9 percent.Given this data,which of the following statements is correct?

A) The two assets have the same coefficient of variation.
B) The stock investment has a better risk-return trade-off.
C) The bond investment has a better risk-return trade-off.
D) Both investments have the same diversifiable risk.