Stock a Has a Beta of 1

Multiple Choice

Stock A has a beta of 1.2 and a standard deviation of returns of 14%.Stock B has a beta of 1.8 and a standard deviation of returns of 18%.If the risk-free rate of return increases and the market risk premium remains constant,then

A) the required return on stock B will increase more than the required return on stock A.
B) the required returns on stocks A and B will both increase by the same amount.
C) the required returns on stocks A and B will not change.
D) the required return on stock A will increase more than the required return on stock B.