CCC Corp has a beta of 1.5 and is currently in equilibrium. The required rate of return on the stock is 12.90% versus a required return on an average stock of 10.00%. Now the required return on an average stock increases by 45.0% (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. 17.40%

b. 14.50%

c. 19.65%

d. 21.75%

e. 18.71%