A 10-year (zero-coupon) Treasury bill with face value of $100 per share is selling at $70.89 per share. There is a 10-year corporate bond with a 5% coupon rate and face value of $100 per share. The coupon payment is every 12 months. The price of the bond is $96.23 per share. The 10-year, zero coupon Treasury bills are selling at $70.89. What's the bond's yield-to-maturity? (Show work)

a. 5.5%

b. 5.6%

c. 5%

d. 5.2%