Brian Tull sold a put option on Canadian dollars for $.02 per unit. The strike price was $.75, and the spot rate at the time the option was exercised was $.80. Assume Brian immediately sold off the Canadian dollars received when the option was exercised. Also assume that there are 50,000 units in a Canadian dollar option. What was Brian's net profit on the put option?

$4,000

$3,750

$3,500

$3,000