Answer:
The answer is E.
Step-by-step explanation:
The correct answer from all the options is E. If a coupon bond is selling at par, its current yield equals its yield to maturity because the coupon rate is the same as discount rate.
For option D. If a coupon bond is selling at a discount, it is selling at interest rate lower than the prevailing market rate.
It is also not correct for option C because the coupon rate or interest rate is higher than the prevailing market rate.