One year ago, an investor purchased a 10-year, $1000 par value, 8% semiannual coupon bond with an 8% yield to maturity. Now, one year later, interest rates remain unchanged at 8%. If the investor sells the bond today (immediately after receiving the second coupon payment, and with no transaction costs) he will have a capital:（）
A. gain of $80.
B. loss of $80.
C. gain of $0.
