Which of the following is NOT categorized as a CBRNE weapon?

The classification of weapons as CBRNE pertains specifically to four types: Chemical, Biological, Radiological, and Nuclear. Each of these categories involves materials that can cause significant harm to human health or the environment, often in the context of warfare or terrorism.

Chemical weapons employ toxic substances designed to inflict harm or death through their chemical properties. Biological weapons involve the use of pathogens or biotoxins to cause disease and death. Radiological weapons, while often associated with nuclear capabilities, focus on the harmful effects of radioactive materials.

The term "conventional" refers to traditional weapons such as guns, missiles, and explosives. These are typically used in standard military operations and are not classified under the CBRNE umbrella, as they do not utilize the specific hazardous materials that characterize CBRNE weapons. Therefore, conventional weapons do not fit the criteria for CBRNE categorization, making this option the correct choice.