(Table) Based on the Table, If the Marginal Benefit Increased

(Table) Based on the table, if the marginal benefit increased by $300,000 at each level, the new optimal quantity would be
$\begin{array}{l}\begin{array}{|c|c|c|}\hline \text { Quantity of Pollution }\\\text { Abatement } & \text { Marginal Cost } & \text { Marginal Benefits } \\\hline 1,000 & 150,000 & 550,000 \\\hline 1,500 & 200,000 & 400,000 \\\hline 2,000 & 300,000 & 300,000 \\\hline 2,500 & 450,000 & 150,000 \\\hline\end{array}\end{array}$

A) 2,500.
B) 2,000.
C) 1,500.
D) 1,000.