Bills bonds pays 8% yearly interest in semi annual payments for 10 years. The current yield on similar bonds is 11%. To determine the market value of this bond, you must: a. Find the interest factors for 10 periods at 7%, b. Find the interest factor for 10 periods at 5.5%, c. Find the interest factors for 20 periods at 9% d. Find the interest factor for 20 periods at 5.5%