If the spot rate on expiry is
$1.70/£1, you would make a profit if you bought a call option because you could
buy £100,000 for $160,000 and then sell it for $170,000. Your profit would be
$10,000 minus the premium you paid for the call option ($0.04). If you bought a
put option, you would not exercise your option because you could sell £100,000
on the open market for $170,000, which is more than the strike price of
$1.60/£1. In this case, you would lose the premium you paid for the put option
($0.02).