Book is: Healthcare Finance 6th edition by Gapenski & Reiter

Which of the following is not a weakness of quantifying financial risk through calculation of expected rate of return and use of Capital Asset Pricing Model.

A- market and corporate betas are based on historical not future volatiliy

B- Assigning probabilities to various outcomes is often a matter of judgement

C- There are no good measures for risk free rate of return

D- expected returns on projects are often based on financial forecasts and projections