In recent years, some online firms have offered different consumers different prices for the same good. These firms use the consumer's IP address to find what city they are in and then charge a higher price to people in wealthier cities. This type of pricing behavior is () A. second-degree price discrimination. () B. first-degree price discrimination. () C. location discrimination. Consider the standard monopoly graph on the right that illustrates a monopoly's demand, marginal revenue, and marginal cost curves. If this monopoly is able to engage in perfect price discrimination, what area would be considered producer surplus? Using the triangle drawing tool, illustrate the area that would represent producer surplus if this monopoly was able to engage in perfect price discrimination. Label your area 'PS.' Price 50 40 30 20 0 0 50 MC D 100 150 200 250 300 350 400 450 Quantity