Figure 7-13 -Figure 7-13 Shows the Average Total Cost Curves of Four

Multiple Choice

Figure 7-13
-Figure 7-13 shows the average total cost curves of four firms that produce milk.Some of the dairies are more productive.AR = P is the long-run price of milk.How many of these dairies will remain in the industry in the long run?

A) All of them
B) Only 2
C) Only 3
D) Cannot determine with information given