1. Consider a portfolio with (1) a short position on a put option on stock WMT with strike $100 and the expiration on July 15 and (2) a long position on a call option on stock WMT with strike $140 and the same expiration date. Assume that the put option has premium of 10S and the call option has premium of $20. Both premium are paid on the expiration date. price of stock WMT on July 15, Y-axis is the gain/loss). price of stock WMT on July 15, Y-axis is the profit) for this portfolio on July 15. a. Plot the payoff diagram (ignore the premiums) for the portfolio on July 15 (X-axis is the b. Plot the profit diagram (include the premium) for the portfolio on July 15 (X-axis is the c. Suppose a short position on stock WMT is added to the portfolio. Plot the payoff diagram