If the demand of a good is inversely related to income, it must be

Which of the following statements is true?

A) An individual with property rights is likely to have lower productivity than an individual without property rights. B) Inclusive institutions do not support the provision of property rights to society and hence foster economic prosperity. C) Productivity of individuals is likely to be independent of the availability of property rights. D) An individual with property rights is likely to have higher productivity than an individual without property rights.

The above table gives some cost data for Peter's Pickles. Peter's fixed cost is $20. The marginal cost of increasing output from 3 to 4 barrels of pickles is

A) $25. B) $75. C) $20. D) $50.