which of the following statements is correct?

A. if a bond selling at premium, this implies that the bond'd yield to maturity exceeds its coupon rate

B. If a coupon bond is selling at par, its current yield equals its yield to maturity.

c. if rates fall afer its issue, a zero coupon bond could trade for an amount above its par value

d. if rates fall rapidly, a zero coupon bond's expected capital gains yield could become negative

e. if a firm is in financial distress, its bonds yield to maturity is likely to fall.