Which CBRN reconnaissance form is performed using sensors or monitors?

The correct answer is the form of reconnaissance that utilizes sensors or monitors to detect chemical, biological, radiological, and nuclear (CBRN) threats from a distance. Remote reconnaissance is particularly advantageous as it allows for the assessment of hazardous areas without putting personnel directly in harm's way. By using advanced sensors and monitoring equipment, this method can gather critical data about the environment while minimizing the risk of exposure to CBRN agents.

In this context, remote reconnaissance plays a crucial role in strategic decision-making and ensures the safety of personnel involved in the operation. The use of technology allows for more comprehensive data collection and analysis, enhancing situational awareness for commanders and supporting effective response planning.