Bell Media has common stock trading at a price of $74, and a market capitalization of $23 billion. The firm also has preferred stock worth a total of $6 billion, currently trading at $54 per share and paying a dividend of $4.50 per share. The firm's beta is 1.2, the risk-free rate is 2.4%, and the market risk premium is 6%. The firm has $28 billion of debt with a yield to maturity of 4%. If the firm's tax rate is 30%, what is Bell's WACC? O A. 6.41% OB. 7.71% O c. 6.61% OD. 7.31% O E. 7.19%