2. A gold futures contract requires the long trader to buy 100 troy ounces of gold. The initial margin requirement is $2,000, and the maintenance margin requirement is $1,500. A. Matthew Evans goes long one June gold futures contract at the futures price of $320 per troy ounce. When could Evans receive a maintenance margin call? B. Chris Tosca sells one August gold futures contract at a futures price of $323 per ounce. When could Tosca receive a maintenance margin call