A trader buys two July futures contracts on frozen orange juice. Each contract is for the delivery of 15,000 pounds. The current futures price is 120 cents per pound, the initial margin is $6,000 per contract, and the maintenance margin is $4,500 per contract. Assess at what price would lead to a margin call. Analyse under what circumstances $2,000 could be withdrawn from the margin account. (9 Marks)