A Trader Buys 100 European Call Options I

A trader buys 100 European call options i.e. one contract) with a strike price of $20 and a time to maturity of one year. The cost of each option is $2. The price of the underlying asset proves to be $25 in one year. What is the trader's gain or loss? Show a dollar amount and indicate whether it is a gain or a loss. _ _ _ _ _ _ _ _ _ _