I have purchased 500 PFE stock at $25 each; I have also bought 3 put and 2 call option contracts on PFE stocks for $5.8 and $ 1.3 per share, respectively. Each option has an exercise price of $30 and expires in six months and each put/call option contract is for options on 100 shares of the stock. Develop a model to calculate (each position separately) the payoffs and profits for all the positions at the time of options expire if the price of PFE stock at that time is $40. Also show the payoff of the portfolio together. Make your model general so it can accommodate and calculate payoffs of different values of long/short positions in the stock, calls and puts.