The correct answer is: A. making, using and preserving records.
An office is a place where people work, especially in a business or government organization. The primary function of an office is to make, use, and preserve records. This includes keeping track of financial transactions, customer information, and employee records. It also includes creating and maintaining documents such as reports, presentations, and contracts.
Option B, remuneration personnel, is not the primary function of an office. Remuneration is the act of paying someone for their work. This is usually done by a company or organization. However, it is not the primary function of an office.
Option C, carrying out the management policies, is also not the primary function of an office. Management policies are the rules and guidelines that managers use to run their businesses or organizations. However, these policies are usually carried out by employees, not by the office itself.
Option D, safeguarding of authority means, is also not the primary function of an office. Authority means the power to give orders or make decisions. However, this power is usually held by managers or executives, not by the office itself.
Therefore, the correct answer is A. making, using and preserving records.