Ajax Corporation Issued 10,000 Units of $1,000 Face Value Bonds

Ajax Corporation issued 10,000 units of $1,000 face value bonds that mature in 20 years and have a 4% coupon rate that is paid semi-annually. If the bonds were sold at 96.5% of their face value,
Calculate the yield to maturity at the end of year 4.

A) 4.26%
B) 4.30%
C) 4.38%
D) 4.44%
E) 4.50%