You are writing a report about sales of your company's products over the past three months. Sales are not growing, but appear to be steady. You have identified three factors contributing to this situation. Which of the following is the most effective lead-in for a paragraph list discussing these factors?a. I have identified three factors that are contributing to the plateau of product sales. b. Certain factors are affecting our sales channels. c. The following factors are contributing to the plateau of product sales. d. Three factors include:

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.