Two put options on a stock have the same expiration date and strike prices of $30 and $35. The market prices of these options are $4 and $7 respectively. a. Explain how a bull spread and a bear spread can be created from these two options. b. Construct a table showing the payoff and profit from one of these spreads for different values of ST. c. Sketch the profit as a function of ST for each spread

please explain where all the numbers are from