Refer to the table below. The marginal cost of the 4th unit of activity is:Units ofActivity TotalCostTotalBenefit0$0$01$2$122$6$223$12$304$20$365$30$406$42$427$56$43

The question of "How are goods and services produced?" most closely addresses which of the following issues?

A) Why are Christmas trees popular only in December? B) Should contractors build residential housing or shopping malls? C) Is income distributed fairly in the United States? D) Should Ford build SUVs or luxury cars? E) Should Ford use expensive industrial robots or inexpensive Mexican autoworkers to produce SUVs?

The producer surplus on a unit of a good is the

A) difference between the marginal social benefit and the marginal social cost. B) number of dollars' worth of other goods and services forgone to produce this unit of the good. C) difference between the price of the good and the marginal cost of producing the good. D) difference between the total cost of the good and the marginal cost.