Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

With respect to the capital asset pricing model, the market risk premium is:
Option A:less than the excess market return.
Option B:equal to the excess market return.
Option C:greater than the excess market return.

Answer: B