Refer to the information provided in Figure 15.4 below to answer the question(s) that follow.  Figure 15.4 Refer to Figure 15.4. Assume The Hand Made Shirt Shop has fixed costs of $90 and is a monopolistically competitive firm. To maximize profits in the short run, the firm should produce ________ personalized sweatshirts.

The pollution created when coal is burned by utilities to generate electricity is an example of ________

A) a marginal benefit to coal producers B) a welfare cost C) an external cost D) a cost paid by the utilities

All of the following are forms of price discrimination, except one. Which is the exception?

a. cents-off coupons for use at the grocery store b. different prices for movie tickets for children and adults c. making airline reservations 30 days in advance and receiving a lower rate d. different prices for prescription drugs for senior citizens and others e. different prices for "2nd day delivery" and "next day air delivery"