Refer Table 1above

Multiple Choice

Refer Table 1above. The table reveals the marginal abatement costs of three firms related to the quantity of emissions. Each firm is now emitting 10 tons/week, so total emissions are 30 tons/week. Suppose we wish to reduce total emissions by 50 percent, to 15 tons per week. What is the cost of this reduction via an equiproportionate decrease in emissions for each firm?

A) $33
B) $69
C) $72
D) $96