Consider a 1-year call option written on £10,000 with an exercise price of $2.00 = £1.00. The current exchange rate is $2.00 = £1.00; The U.S. risk-free rate is 5% over the period and the U.K....

Consider a 1-year call option written on £10,000 with an exercise price of $2.00 = £1.00. The current exchange rate is $2.00 = £1.00; The U.S. risk-free rate is 5% over the period and the U.K. risk-free rate is also 5%. In the next year, the pound will either double in dollar terms or fall by half (i.e. u = 2 and d = ½). If you write 1 call option, what is the value today (in dollars) of the hedge portfolio? PLEASE HOW WORK STEP BY STEP 12698.41