Which of the following characteristics are drawbacks of convertible bonds? Select one: O a. Downside protection is ineffectual fthe bond is bought at a large premium over floor value. O b. Interest rates on the debt-instrument part of a convertible bond are frequently below market interest rates. c. Conversion may be forced on the bondholder by call provisions on the convertible bond d. Allof hese are drawbacks of convertibles. Check A step-up in the conversion price refers to