The current spot exchange rate is $\backslash (\backslash$$ $1\mathrm{.}55/\backslash )$ and the $90-$day forward rate is $\backslash (\backslash$$ $1\mathrm{.}50/\backslash ).$ Based on your forecasting model of $\backslash ($ S $/\backslash ),$ you are confident that the spot exchange rate will be $\backslash (\backslash$$ $1\mathrm{.}48/\backslash )$ in $90$ days. What actions do you need to take today to speculate to make a profit based on this forecast $($assume no transaction cost$)?$ a$.$ Sell euro today at the spot rate, buy $90-$day $\backslash (\backslash )$ forward. b$.$ Selling $90-$day $\backslash (\backslash )$ forward contract for $\backslash (\backslash$$ $1\mathrm{.}50/\backslash ).$ c$.$ Buying $90-$day $\backslash (\backslash )$ forward contract for $\backslash (\backslash$$ $1\mathrm{.}50/\backslash ).$ d$.$ Buy euro today at the spot rate, sell $90-$day $\backslash (\backslash )$ forward.