When a monopolist sells two units of output its total revenue is $150. When a monopolist sells three units of output its total revenue, is $210. When the monopolist sells three units of output, the price per unit is

Refer to the figure above. What is the market-wide consumer surplus when the market price of wine is $18?

A) $36,000 B) $3,000 C) $45,000 D) $210,000

Which of the following firms is likely to have the highest market power?

A) A perfectly competitive firm B) A monopolistic competitor C) A monopoly D) An oligopoly with homogeneous products