Using the diagram above, calculate the size of an indirect tax that would eliminate the externality, the total tax revenue that the government would collect, and the resulting equilibrium quantity after the imposition of the tax.
| Size of indirect tax per unit | Total tax revenue | Quantity bought and sold after tax |
A. | $2 | $ 1 400 000 | 700 000 unites |
B. | $2 | $ 1 200 000 | 600 000 units |
C. | $1 | $ 1 200 000 | 600 000 units |
D. | $1 | $ 1 400 000 | 700 000 units |