6. In the table below, you can find the willingness to pay for each extra unit of a good, along with a monopolist's marginal revenue and marginal cost of producing that extra unit of the good. The deadweight loss due to the inefficient market structure is Unit First Second Third Fourth Fifth (Marginal) 40 35 32 30 28 Willingness to pay Marginal 20 24 28 32 36 Cost Marginal 40 30 26 24 20 Revenue A. 2 B. 4 C. 6 D. 11