Which one of these statements is true? Ignore transaction costs, taxes, signaling effects and other imperfections in answering this question. A) Shareholders are unable to personally adjust the dividend policy set by the firm. B) According to Modigliani and Miller, a firm should alter its investment policy whenever a change is made in its dividend policy. C) Firms should never give up positive net present value projects to increase dividends. D) Firms should reject positive net present value projects to increase dividends or buyback shares.