Which of the following concerning operating taxes are true? I. With full information, operating taxes can be computed without error. II. The effects of research and development (R&D) should be removed from operating taxes. III. Operating taxes are computed as if the company were financed entirely with equity. IV. Making estimates of operating taxes based on tax rates in individual jurisdictions is not recommended. a) I and II only. b) I and III only. c) II and III only. d) III and IV only.