Which of the following statements is correct? a. if the risk-free rate rises, then the market risk premium must also rise. b. if a company's beta is halved, then its required return will also be halved. c. if a company's beta doubles, then its required return will also double. d. the slope of the security market line is equal to the market risk premium, (rm − rrf).e. beta is measured by the slope of the security market line.

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.