Which of the following is true?

Select one:

a$.$ The current market price of the bond does not affect the amount that the company pays in periodic cash interest payments.

b$.$ The coupon rate determines the yearly interest expense on bonds.

c$.$ Debenture bonds are secured by specific assets of the company.

d$.$ If a bond sells for more than face value, the market rate of interest was more than the coupon interest.

e$.$ Interest expense increases each period when a bond is issued at a premium.