Suppose that local affiliates of networks such as CBS, NBC, ABC, and Fox raise the rates they charge cable providers to distribute their signals to customers. As a result, the costs for cable companies of providing cable services increases, shifting the supply curve for cable services up and to the left. Which of the following describes what happens to the demand curve for cable services? Question 18 options: a) a rightward shift of the demand curve b) a movement up along the demand curve, with quantity demanded increasing c) a movement up along the demand curve, with quantity demanded decreasing d) a leftward shift of the demand curve