During next year, the expected market return (R_m) is expected to fall, while the risk-free rate (R_f) is expected to remain the same. Given this forecast, which is correct?

A - the required return will fall for all stocks, but it will fall LESS for stocks with higher betas

B - the required return for all stocks will fall by the same amount

C - the required return will fall for all stocks, but it will fall MORE for stocks with higher betas

D - the required return will increase for stocks with a beta less than 1.0 and will decrease for stocks with a beta greater than 1.0