A support function within companies that serves a vital role in designing and implementing company policies for managing employees is usually called the .

H.R Department.

Explanation:

The efficiency of the human resources department in an organization lies in the ability to satisfy business requirements by managing the employees of that firm. The role of the department includes overseeing different aspects of employment, setting employment standards, information of employees for future reference, certain aspects of recruitment, etc.

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where is the rest of the question. this isn't making sense. can you upload a picture of the question?