Answer:
The answer is Management
Explanation:
Management is a term that describes the process of achieving the objectives of an organisation through directing people and utilizing other resources.
For management to be effective, it has to take place within a formal structure of authority and tasks.
Authority sees to the allocation of task among employees as well as their supervision to ensure that objectives are accomplished while plans are implemented.
Power is the rate at which work is done.
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D. A struggle for existence is apparent.
If a struggle for existence is apparent, natural selection occurs because all of the weak/unfit/unadapted ones die.