Graph the payoffs against S_T ( the price of the underlying at expiration of the option contract) of… Show more Graph the payoffs against S_T ( the price of the underlying at expiration of the option contract) of two portfolios: the first is long in a stock S and short in a call on S; the second is short in S and long in a call on S. Assume the options are European with the same strike price E and expiration date T. Thanks a lot! • Show less