CCC Corp has a beta of 1.5 and is currently in equilibrium. The required rate of return on the stock is 12.10% versus a required return on an average stock of 10.00%. Now the required return on an average stock increases by 25.0% (not percentage points). Neither betas nor the risk-free rate change. What would CCC's new required return be? Do not round your intermediate calculations.

a. 14.60% b. 15.85% c. 12.50% d. 15.13% e. 18.75%