A 10 year, 6.75% semi-annual coupon bond with a par value of $1,000 of the Mark Cuban company may be called in 4 years at a call price of $1,060. The bond sells for $1,100. What is the bond's yield to maturity?

a. 5.94%

b. 6.75%

c. 5.44%

d. 2.72%

e. None of these are correct