The remaining part of Question 1 In addition to preparing a graph of the short-run supply curve for aluminum, answer the following questions: a. What categories of cost did you include in your determination of marginal cost? Why did you include these cost categories and exclude the other categories? b. According to the supply curve you constructed, how much output would be supplied by the aluminum industry at a price of $1,100 per ton? How does this compare to actual production of primary aluminum in 1993? c. According to the supply curve you constructed, how much output would be supplied at a price of $1,500 per ton? d. The supply curve is constructed under the assumption that each smelter is operated to maximize its prots. is this, in your View, a plausible assumption