What is a Closed Circuit Television (CCTV) primarily used for?

Closed Circuit Television (CCTV) is primarily used for surveillance and security monitoring. This technology involves a system of video cameras that transmit signals to a specific, limited set of monitors or recording devices, enabling users to observe and secure various environments.

CCTV systems are widely utilized in various settings, including public places, businesses, and private properties, as they help deter crime and provide documentation of events. By monitoring areas for suspicious activity or unauthorized access, CCTV assists law enforcement and security personnel in maintaining safety and managing incidents as they occur.

The other options do not align with the primary function of CCTV. Public broadcasting typically involves distributing media content to a broad audience, which doesn't apply to closed circuit systems designed for limited viewing. Home entertainment systems focus on media consumption, such as movies and games, rather than security. Lastly, traffic management may use CCTV in specific instances, but it's mainly part of a broader traffic monitoring system rather than the primary feature of CCTV itself. Thus, the correct answer highlights the intended role of CCTV in security and monitoring contexts.