Which of the following is NOT a conclusion drawn from M&M's Propositions 1 and 2? Select one: O a. A firm can change its market value by splitting its cash flows into different streams. O b. The WACC is determined by the riskiness of the company's business (assets) O c. Shareholder's required return rises with leverage. O d. The WACC does not change as capital structure change. O e. Firm value is determined by the left hand of the balance sheet, the firm's assets, and the cash flow generated by them