Use the Following Diagram to Answer the Following Questions

Use the following diagram to answer the following questions.

-Refer to Gallons. Suppose that the production level was at 2,000 gallons where MC=MB. What would be the maximum amount that consumers would pay producers to reduce production (and pollution) ?

A) $2 per gallon.
B) $12.50 per gallon.
C) $1.50 per gallon.
D) $5 per gallon.