-The Above Figure Shows the Marginal Benefit to a Firm

Multiple Choice

-The above figure shows the marginal benefit to a firm of polluting in the local river while producing its output,and the marginal cost to the surrounding neighbors.The marginal cost of production is zero for the firm.If the firm owns the river and there are thousands of surrounding neighbors,how much pollution is likely to occur?

A) 0 units
B) 500 units
C) 1000 units
D) more than 1000 units