XYZ corporation would like to buy 18,000 units of commodity A after 1 year and wants to hedge the price risk using futures contracts. Unfortunately, there are no futures contracts on commodity A. Therefore, the company decides to buy futures contracts on commodity B which is similar to commodity A. The standard deviation of monthly changes in the price of commodity A is $2.2. The standard deviation of monthly changes in the futures price on commodity B is $2.7. The correlation between the futures price and commodity A's price is 0.85. Each futures contract on commodity B is for delivery of 2,500 units. At the time of entering the futures contract, the futures price was $12. At the time of closing the futures contract, the futures price is $13 and the spot price of commodity A is $13.65. What is the effective price paid for one unit of commodity A after taking into account the profit or loss on the futures contracts? (For answering the question, assume that the correct number of futures contracts are bought.) O a $13.00 O b. $12.80 O c. $12.90 O d. $12.85 O e. $12.95