Excel Corp. has 8 percent coupon bonds making semiannual payments with a YTM of 7.2 percent. The current yield on these bonds is 7.55 percent. How many years do these bonds have left until they mature? Assume a $1,000 par value. (Hint: current yield = annual coupon payment / current price of bond)

A. 11.06 years

B. 21.74 years

C. 22.12 years

D. 10.87 years