The government imposes an excise tax on the sale of all college textbooks. Before the tax was imposed, 1 million textbooks were sold every year at a price of $70.After the tax is imposed, 800,000 books are sold yearly; students pay $90 per book, $60 of which publishers receive.

Question 1: The tax rate per textbook is,

A. 20

B. 30

C. 40

D. 10

Question 2: Given the after tax demand price, the tax incidence on students is

A. 20

B. 30

C. 40

D. 10

Question 3: Given the after-tax supply price, the tax incidence on publishers is

A. 20

B. 30

C. 40

D. 10

Question 4: The total tax revenue for the government is ______ million.

A. 3

B. 16

C. 24

D. 32

Question 5: The amount of deadweight loss due to the tax is ______ million.

A. 2

B. 3

C. 4

D. 6