A European at$-$the$-$money put option on the British pound has $1$ year until maturity. The exchange rate volatility is $10\%,$ the U$.$S$.$ risk$-$free rate is $1\mathrm{.}0\%,$ and the U$.$K$.$ risk$-$free rate is $1\mathrm{.}5\%($all per annum and with continuous compounding$).$ The current exchange rate is $$1\mathrm{.}30$ per pound. What is the value of the put option? $($Hint: All necessary information is included in the quesiton. Use Black$-$Scholes$-$Merton valuation for currency options$)$