单项选择题

Jack Hemmings bought a 3-month British pound futures contract for 1.4250 at which time he sold the pound futures. If each pound futures contract is for an amount of £62,500, how much money did Jack gain or lose from his speculation with pound futures?

A.$937.50 loss
B.$937.50 gain
C.£937.50 loss
D.£937.50 gain