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, which of the following statements best describes the effect of the homogeneity assumption? Because all investors have the same economic expectations of future cash flows for all assets, investors will invest in:
Option A:the same optimal risky portfolio.
Option B:the Standard and Poor’s 500 Index.
Option C:assets with the same amount of risk.

Answer: A