(Figure: Market 3) Use the Graph to Answer the Question

Multiple Choice

(Figure: Market 3) Use the graph to answer the question.
The graph shows the marginal social cost, demand, and supply curves in the toothpaste market. If market forces prevail, this market will produce and sell _____ tubes of toothpaste at a price of _____.

A) eight; $5
B) eight; $4
C) 12; $3
D) 12; $4