J & B Corp. is investing in a major capital budgeting project that will require the expenditure of $16 million. The money will be raised by issuing $2 million of bonds, $4 million of preferred stock, and $10 million of new common stock. The company estimates is after-tax cost of debt to be 7%, its cost of preferred stock to be 9%, the cost of retained earnings to be 14%, and the cost of new common stock to be 17%. What is the weighted average cost of capital for this project?

a)12,20%

b)13.12%

c)13.75%

d)14.23%