Alpha Products maintains a capital structure of 40 percent debt and 60 percent common equity. To finance its capital budget for next year, the firm will sell $50 million of 11 percent bonds at par value (assume no flotation costs). The firm will finance the rest of its $125 million in capital expenditures with retained earnings. Next year, Alpha expects net income to grow 7 percent to $140 million, and dividends also are expected to increase 7 percent to $1.40 per share and to continue growing at that rate for the foreseeable future. The current market value of Alpha's common stock is $30 per share. If the firm has a tax rate of 21 percent, what is its weighted cost of capital for next year?

a) 10.48% d) 11.40% b) 9.88% e) 10.98 c) 12.22%

Please do this step by step, thank you!

I get what wacc is but I don't understand all of the parts of it and how to calculate each part and then bring it all together.

The answer is A but i don't know how to get there