In complex operational strategies, which often call for the operations function to take on a wide range of activities, the operational specialization benefits of focus can still be achieved by: a. combining the activities in a single unit, which focuses on the entire set. b. splitting the activities among several units, each of which focuses on a specific subset. c. investing in resources to deal with the increased complexity of coordination. d. All of the answers are correct. e. None of the answers are correct.