The graph below shows the marginal cost Of abatement curve, which shows the extra cost to the firm of cleaning up an additional unit of pollution. When a pollution charge of $5 per unit emitted is imposed, how many units of pollution will the firm choose to clean up? Number Part: A C] Uni ts When a pollution tax of $20 per unit emitted is imposed, how many units of pollution will the firm choose to clean up? Number Part: B D Units MC of Abatement 10 20 30 40 5060 70 Quantity (tmits pdlutjm cleared) 80 go 100