4. What follows are several portfolios; each is denoted by the term Port. Graph the profit curve at t = T for each of them. Determine the strengths and weaknesses of each portfolio. Namely, explain what a reasonable investor must be expecting to adopt each portfolio. In this listing, CE denotes a call with strike price E, -CE represents where a person is short on a call- the Call was sold, Pe is a put, -PE is selling, or going short on a put, and the numbers E indicate the strike price. If no number is given, then assume that the strike price is $100. (a) A "Long Call" is Port = CE. (b) A "Short Call" is Port =-CE. (c) A "Long Put" is Port = PE. (d) A "Short Put" is Port PE (e) A "Long Straddle" is Port PE + CE; namely, buy both a Put and Call with the same strike price. (f) A "Short Straddle" is Port--P-C (g) A "Long Strangle" is Port-PE; +CE2; namely, it is a purchase of a put at strike price E1, which is less than the strike price of a (h) a "Short butterfy" is PortCE +2-CEs where Ei