Hich of the following is not an example of a barrier to entry? A. A taxi cab driver in New York City obtains a license to legally provide transportation in New York City. B. An entrepreneur opens a cupcake bakery. C. A chemist receives a patent for a new skin cream.

Which of the following describes one of the ways that the demographics of an area affect the price of housing in that area? a. when more people have children, their incomes tend to be higher and the housing prices are also higher. b. older people are more likely to stay in their houses, creating a seller's market that keeps prices low. c. an area with a lower population density won't have enough construction workers to build new houses quickly. d. an area with younger people will have a higher demand for rentals and a lower demand for buying.