Based on the Accompanying Graph, Which of the Following Statements

Based on the accompanying graph, which of the following statements is correct?

A) As more and more pollution is eliminated from the environment, the cost of removing each additional unit of pollution decreases.
B) As more and more pollution is eliminated from the environment, the cost of removing each additional unit of pollution stays the same.
C) As more and more pollution is eliminated from the environment, the cost of removing each additional unit of pollution increases.
D) As more and more pollution is eliminated from the environment, the cost of removing each additional unit of pollution reaches equilibrium when intersecting the amount of pollution axis.
E) Nothing can be inferred from the graph.