(1.4967-1.4714) * 2 * 625000 = 31625 USD.

Have a deficit

( 1.5 174- 1.4967) * 2 * 625000 = $25875.

Subtract the total profit and loss, and the profit is $5,750. So choose C.

The reason why I missed a zero is mainly because I calculated it by standard hand. According to the meaning of the topic, I made a one-handed calculation with 0, 1 trading unit. You just need to change 2 in the formula to 0, 2.