14) Apple has a $617 billion market cap (the market value of their equity) and $35 billion in long term debt (market value of their debt). Assume their Beta is 0.89, and the cost of their debt (required rate of return on debt) of 3%. If the market is expected to return 9%, the risk free rate is 2%, and the corporate tax rate is 30%, what is Apple's WACC? a. 6.51% b. 7.90% c. 9.10% d. 10.02% e. 11.35%