You have $$800,000$ to invest: either using your own fund $($Option A$)$ or borrowing in the US $($Option B$).$ Also, assume that:

$-$ current spot rate S$($$$/)=1\mathrm{.}60$

$-90-$day forward rate F$($$$/)=1\mathrm{.}6090-$day interest rate in the US is $2\%-90-$day interest rate in the UK is $4\%$ Questions:

$1)$ Is there any covered interest arbitrage? $2)$ If so$,$ measure the profit you can earn with $$800,000$ in each option.