The Table Below Shows the Marginal Costs and Marginal Benefits

Multiple Choice

The table below shows the marginal costs and marginal benefits associated with cleaning up a polluted landfill site.
TABLE 17-2
-Refer to Table 17-2.What is the net benefit to society of achieving the 100th percentage point of cleanliness of this land?

A) $42 million
B) $4 million
C) -$4 million
D) $0
E) -$16 million