A 10-year semi-annual coupon bond with an $1000 par value pays an annual coupon rate of 6% and the market requires 8% APR. What is the appropriate coupon, time period, and discount rate respectively that needs to be used to correctly value this bond? a. $30, 20, & 4% b. $60, 10, & 8% c. $30, 10, & 4% d. $30, 20, & 8%