Question: The simplest, most all encompassing description or definition of management and thus the role first-line supervisor is: Within that phrase-getting things done through people-is not only descriptive of the role of the first-line supervisor, it is also the simplest, most all-encompassing definition of management A. Providing the organization's products or services to its customers or clients. B. Handling all business-related problems and situations as they arise. C. Getting things done through people. D. None of the above.