\fThe figure above illustrates a demand schedule confronted by three types of firms, namely a firm with marginal cost level c1, c2, and c3. a. Make a (large) copy of the figure. Draw in the marginal revenue curve. For each of the three firms determine (explain and draw in the figure): The quantity produced The price charged The operating profits received b. Explain briefly how the information from question a can be useful for determining which firms are engaged in export activity and which firms are not