(Table: Pollution Permits) the Table Shows the Current Pollution Levels

(Table: Pollution Permits) The table shows the current pollution levels for each firm and the cost of abatement on a per ton of glop basis. If the government does NOT know the cost of abatement for each firm, then the total cost of cleaning up 80 tons of glop using uniform regulation would be
$\begin{array}{|l|c|c|}\hline \text { Firms } & \text { Current Pollution Levels } & \begin{array}{c}\text { Abatement Cost } \\\text { (per ton) }\end{array} \\\hline \text { Shetland } & 70 & \$ 20.00 \\\hline \text { Dominion } & 80 & \$ 30.00 \\\hline \text { Greener Tech } & 50 & \$ 10.00 \\\hline\end{array}$

A) $2,100.
B) $2,400.
C) $3,500.
D) $1,900.