Independent or proprietary commercial organizations that provide protective services to employers on a contractual basis.

• A. Private Protective Services
• B. Public Protection
• C. Private Security
• D. Corporate Security

Answer: (A)

The key idea is identifying the type of security providers that operate as private contractors rather than as government or in-house departments. Independent or proprietary commercial organizations that deliver protective services to employers under a contract are described as private protective services. This term specifically captures external, for‑profit firms that are hired by an employer to perform guarding, patrols, access control, risk assessment, and other protective functions under a formal agreement, rather than security that is provided by government agencies or by the employer’s own internal security team.

Public protection refers to government or law enforcement agencies, so it doesn’t fit the contracted, private contractor scenario. Corporate security describes the security function inside a company, typically internal and part of the employer’s own operations, rather than an external contractor. Private security is a broader label that can include both internal and external providers, but the phrase private protective services best highlights the external, contract-based nature of the arrangement described in the question.