16. A bond that can be paid off early at the issuer's discretion is referred to as being which one of the following?

A. zero coupon

B. callable

C. senior

D. collateralized

E. unsecured

17. A $1,000 face value bond can be redeemed early at the issuer's discretion for $1,030, plus any accrued interest. The additional $30 is called which one of the following?

A. dirty price

B. redemption value

C. call premium

D. original-issue discount

E. redemption discount