What is vertical integration? a. the process a movie goes through from script to promotion. b. a unionizing tactic in which all levels of movie production—from actors and directors to camera operators and janitors—are brought into a single bargaining force. c. control of the production, distribution, and exhibition of a film or other cultural product by one company. d. the theory that media elites atop the social hierarchy can persuade the citizenry to act in certain ways. e. a system for predicting whether a film will succeed or fail at the box office.