Answer:
b.
A bond’s current yield must always be either equal to its yield to maturity or between its yield to maturity and its coupon rate.
Step-by-step explanation:
Bonds above par value: Coupon rate > Current yield > Yield to maturity
Bonds below par value: Coupon rate < Current yield < Yield to maturity
Par value bonds: Coupon rate = Current yield = Yield to maturity