An investor buys one call option contract on a stock with a strike price of $38\mathrm{.}5$ and sells a call option contract on the same stock with a strike price of $40.$ The market prices of the options are $2\mathrm{.}40$ and $1\mathrm{.}80$ respectively. The options have the same maturity date. Describe the in$-$ vestor$$s position and the possible gain$/$loss he will get $($taking into account the initial investment$).$ Make a graph of your gain$/$loss$.$