Which of the following describes "surveillance systems"?

The choice describing "surveillance systems" accurately is the one that pertains to technological means used to observe and record activity. Surveillance systems typically involve various forms of technology, such as cameras, motion detectors, and other electronic monitoring tools that help oversee an area and gather data about activities occurring within it. These systems are an essential part of security operations and are utilized to increase safety, deter criminal behavior, and provide evidence if incidents occur.

In contrast, other options mention different aspects of security and safety management. Options that involve foot patrols relate more to physical observations and human patrols rather than technological surveillance. Programs for employee safety training focus on educating personnel about safety protocols and procedures rather than monitoring. Protocols for chemical storage audits deal with the proper management and safety of hazardous materials, which is a completely different operational area. Thus, the technological methods inherent to surveillance systems set B apart as the most accurate description.