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 capital market theory, the average beta of all assets in the market is:
Option A:less than 1.0.
Option B:equal to 1.0.
Option C:greater than 1.0.

Answer: B