The correct answer is A. human relations.
Human relations is a theory of management that emphasizes the importance of interpersonal relationships in the workplace. It is based on the idea that employees are more productive when they feel valued and respected, and when they have a sense of belonging to a team.
Unity of direction is a management principle that states that there should be one and only one head and one plan for a group of activities having the same objective.
Unity of command is a management principle that states that each employee should receive orders from only one superior.
None of these principles are directly related to the focus on social environment.
