QUESTION 11 a Which of the following situations would intensify the business risk borne by a firm's common stockholders? O a. The firm issues new fixed-income securities, such as bonds, to raise funds to support operations. O b. The firm starts purchasing from a supplier that allows it to renegotiate raw materials costs every six months. O c. The firm reduces its use of fixed operating costs. O d. The firm takes actions to stabilize its annual sales. O e. The firm issues new common stock to raise funds