Please explain steps:
Company Z currently all-equity financed, with a cost of capital of 15% and firm value of $10 million. The company is considering a $2 million debt issue at 8% interest rate. The money raised will be used to repurchase shares. The company's marginal tax rate is 32%. According to the M&M Proposition, what is Aceline's WACC after the debt issue
a. 13.09%
b. 14.10%
c. 14.20%
d. 15.00%
e. 16.19%