Zero-coupon risk-free bonds are available with the following maturities and yield rates (effective, annual): Maturity(in years) Yield %
1 6
2 6.5
3 7

You need to buy corn for producing ethanol. You want to purchase 10,000 bushels one year from now, 15,000 bushels two years from now, and 20,000 bushels three years from now. The current forward prices, per bushel, are $3.89, $4.11, and $4.16 for one, two, and three years respectively. You want to enter into a commodity swap to lock in these prices. Which of the following sequences of payments at times one, two, and three will NOT be acceptable to you and to the corn supplier?

a. $38,900; $61,650; $83,200
b. $39,083; $61,650; $82,039
c. $40,777; $61,166; $81,554
d. $41,892; $62,340; $78,997
e. $60,184; $60,184; $60,184 73.2