Assume zero-coupon yields on default-free securities are as summarized in the following table:

Maturity (years)	1	2	3
Zero-coupon YTM	4%	4,5%	4,75%

Consider a three-year, default-free security with annual coupon payments and a face value of $1000 that is issued at par. What is the coupon rate of this bond (EAR)? (hint: you can solve this question algebraically but also you can use goal seek in Excel)

A. 4.73%

B. 4.75%

C. 4.55%

D. 4.81%