FX Option is a of with functions , keys and example object that represents a specialization where the underlying is the associated with a given object.
The option is exercised by paying x units of the , where x is a given strike.
For example, a european call option on EUR/USD with a strike of 1.30 would expire worthless if EUR/USD is less than 1.30 and would translate into a profit of .10 USD if EUR/USD reaches 1.40 at expiry.
Note the above option is simultaneously a put option on USD/EUR with a strike of 1/1.30.
The pricing methodology is specified in