A government imposes a per-unit tax on light bulbs in a competitive market. Afterward, the seller's after-tax price increases from the original equilibrium price of $12 to $14. The marginal cost of lightbulbs was $9 before the tax and $12 after the tax was implemented. The quantity supplied decreases from a before-tax quantity of twelve thousand bulbs per month to ten thousand bulbs per month after the tax. Based on this, which of the following is true?
A. Total expenditures on light bulbs increase after the tax.
B. The amount of deadweight loss is $20,000 after the tax.
C. Total revenue earned by light bulb producers increases after the tax.
D. The total tax revenue collected by the government is $30,000 per month.
E. Consumers and producers are sharing an equal percentage of the tax burden.

The government has imposed tax on the light bulb production and the new price after the tax is $14. The price before the tax was $12 and the marginal cost before tax was $9. There was a profit of $3 for the producers of the light bulb. The tax burden is shifted to the consumers of the bulb since the marginal price after tax is $12. Total expense for the production of bulb has increased due to tax.