Airline A buy 150 foreign exchange European put option contracts for selling USD and get THB on the 1st of January, the spot price of USD/THB is 32.00. The exercise price is quoted at USD/THB = 31.70 The maturity of this option is the 1st of July.On the 1st of July spot price USD/THB the spot price is 30. Assume that option premium is 0.1 USD per one unit of currency and paid at the beginning of the contract. 1 contract include 100 unit of currency exchange. Calculate the net gain/loss of the airline in THB.

a. -22,500

b. 1,500

c. 25,500

d. -25,000