Suppose a pension fund must have $10,000,000 five years from now to make required payments to retirees. If the pension wants to guarantee the funds are available regardless of future interest rate changes, it should:

A. Sell a 5-year duration bond so that it matures with a book value of $10,000,000

B. Sell $10,000,000 face value discount bonds with a duration of five years

C. Purchase 7-year, semi-annual coupon bonds that have a duration of five years

D. Purchase 8-year, annual payment bonds that have a dollar duration of $10,000,000

E. None of the options since future interest rates are too unpredictable