A zero coupon bond with a face value of $1,000 is issued with an initial price of $630.66. The bond matures in 20 years. What is the implicit interest, in dollars, for the first year of the bond's life? Use semiannual compounding.

A.) $4.09 B.)$8.17 C.) $7.35 D.) $14.71 E.) $7.44