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 primary determinant of expected return of an individual asset is the:
Option A:asset’s beta.
Option B:market risk premium.
Option C:asset’s standard deviation.

Answer: A