A callable bond:
 A. would usually have a lower yield than a similar non-callable bond.
 B. is attractive to the buyer because the immediate receipt of principal and premium usually produces a higher return.
 C. is more apt to be called when interest rates are high because the interest savings will be greater.
 D. generally has a higher credit rating than a similar non-callable bond.
 E. is attractive to the issuer because it allows the issuer to prepay outstanding debt if new debt can be issued at lower rates.