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A firm has accounts receivable 5 million GBP due in November and is planning to hedge its companys exposure using the following relevant information. Spot Rate 160.34 cents per GBP GBP 90 day interest rate 0.4% per annum USD 90 day interest rate 0.2% per annum Forward Rate: 162.1 Exercise Price Call Price (cents/GBP) Put Price (cents/GBP) 162 cents/GBP 6.00 5.81 163 cents/GBP 5.52 6.33 164 cents/GBP 5.08 6.89 a) What's the least that the firm can make using option contracts