Which of the following statements about equity betas is false? A. Research shows individual equity betas are unstable over time B. An asset beta can be ungeared to obtain an equity beta C. It is mathematically possible for equity beta to be negative D. Equity betas are affected by both business risk and financial risk E. A firm with an equity beta of 1.20 will experience a 12% increase in returns if the market return rises by 10%