Which of the Following Statements Best Describes Convertibles

Which of the following statements best describes convertibles?

A) One advantage of convertibles over warrants is that the issuer receives additional cash when convertibles are converted.
B) Investors are willing to accept a lower interest rate on a convertible than on otherwise similar straight debt because convertibles are less risky than straight debt.
C) At the time it is issued, a convertible's conversion (or exercise) price is generally set equal to or below the underlying stock's price.
D) For equilibrium to exist, the expected return on a convertible bond must normally be between the expected return on the firm's otherwise similar straight debt and the expected return on its common stock.