With respect to the security market line, if two risky assets have the same covariance with the market portfolio but have different estimated rates of return, the most accurate conclusion is that the two risky assets have:

A.Different amount of systematic risk,and both assets are properly values.

B.Different amounts of systematic risk,and at least one of the assets is either overvalued or undervalued.

C.The same amount of systematic risk,and at least one of the assets is either overvalued or undervalued