Which of the following is true regarding bonds? | a. Callable bonds have higher value than non-callable bonds, all else equal. b. Convertible bonds have higher value than non-convertible bonds, all else equal. c. A bond with higher seniority means that the company has set aside money to make the bond payments. d. A lower coupon bond will be less risky than a higher coupon bond, all else equal. e. All of the above are false