TABLE 10-1 -Refer to Table 10-1.For a Single-Price Monopolist Producing and Selling

Multiple Choice

TABLE 10-1
-Refer to Table 10-1.For a single-price monopolist producing and selling 9 units,the marginal revenue earned by selling the 9th unit is

A) -4.
B) -2.
C) 0.
D) 2.
E) 4.