Which of the following is NOT a correct statement? Please choose "All statements are correct" if all other statements (except this one) are correct. O a. Equity securities have no fixed maturity date O b. DDM cannot be applied to firms without any expected dividend payments. Oc. All statements are correct. O d. Interest payments are a legal obligation of the firm only after the board of directors declares them. DDM cannot be used when the firm's growth rate equals the investor's required rate of return on the Oe. stock.