PROBLEM 5. [5 points] The given graph is the payoff function of a portfolio consisting of European options. function? a put option with strike price E2 expiration date T, E, Ei. a call option with strike price Ep expiration date T, E2> E a put option with strike price E1 expiration date T, E2> E (3) Buying a call option with with strike price E1, expiration date T and selling (4) Buying a call option with with strike price E2, expiration date T and buying Compute the four payoff functions and their graphs