Two Companies, Dirty Inc Suppose Pollution Is Initially Unregulated

Multiple Choice

Two companies, Dirty Inc. and Filthy Inc., each of which has access to 5 different production processes, each of which has a different cost and produces a different amount of pollution. The daily costs of the processes and the number of tons of smoke emitted are shown in the table below. $$\begin{array} { | c | c | c | c | c | c | } \hline \text { Process } & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } \\\hline \text { (smoke/day) } & \text { (4 tons/day) } & \text { (3 tons/day) } & \text { (2 tons/day) } & \text { (1 ton/day) } & \text { (0ns/day) } \\\hline \text { Cost to Dirty Inc. (\$/day) } & \$ 110 & \$ 200 & \$ 380 & \$ 740 & \$ 1,460 \\\hline \text { Cost to Filthy Inc. (\$/day) } & \$ 400 & \$ 430 & \$ 490 & \$ 580 &\$700 \\\hline\end{array}$$ Suppose pollution is initially unregulated. If the City Council imposes a tax of $91 per day on each ton of smoke emitted, then total emissions will fall to ______ tons of smoke per day.

A) 1
B) 2
C) 4
D) 8