An investor takes a long position in two gold futures contracts. Each gold futures contract is for delivery of 100 ounces of gold. The initial futures price is $1,250 per ounce. The initial margin is $6,000 per contract. The investor closes the contracts when the gold futures price is $1,226.90. If there was one margin call for $4,020, what is the balance in the margin account at the time of closing the futures contracts? O a. $11.400 O b. $11,800 O c. $12,200 O d. $12,600 O e. $13,000