2. (McMillan) XYZ is at 70. One may be able to establish a low-debit butterfly spread with the strike price of 50s, 60s and 70s if the following price exist: XYZ common, $70 XYZ July 50 call, $20 XYZ July 60 call, $12 XYZ July 70 call, $5 a) Calculate the net debit (credit). b) Draw the payoff chart for the butterfly spread. c) Calculate the maximum profit, maximum loss. d) Is this a neutral strategy? Why?