Assume that we have the following derivatives portfolio: A long futures contract on stock A, with strike price 90 and a long put option contract on the same stock, with the same strike price. The option's premium is 7 and is payed today. The risk free rate of interest is 5%, and the time of expiration is 1 year What will be the present value profit for the above derivatives portfolio if the stock's spot price is 106 at the time of expiration Explain every step in detail, don't just show the calculations, please explain them