Income taxes are taxes paid on wages and investment income

Refer to Figure 5-6. Why is there a deadweight loss?

A) because the marginal private cost for each additional unit between Q1 and Q2 exceeds the marginal private benefit B) because the marginal private benefit for each additional unit between Q1 and Q2 exceeds the marginal cost C) because the marginal social cost for each additional unit between Q1 and Q2 exceeds the marginal social benefit D) because the marginal social benefit for each additional unit between Q1 and Q2 exceeds the marginal cost

The supply curve shows: a. the same basic information as a demand curve

b. how the average cost of production varies with price. c. how the quantity supplied varies with price. d. how the quantity demanded varies with price.