Which of the following items falls under high risk?

The correct choice encompasses items like light weapons, C4, TNT, and anti-tank mines due to their potential for causing significant harm if mismanaged or handled improperly. These items are classified as high risk because they are munitions that can lead to explosive events, resulting in severe injury or destruction. The nature of these items necessitates strict control measures and robust safety protocols to mitigate the inherent dangers associated with their use, storage, and transport.

High-risk items are identified based on their capability to cause large-scale damage and the high level of training required to handle them safely. These considerations guide military operations and training programs, ensuring that personnel are well prepared to manage such hazardous materials responsibly.

In contrast, non-explosive training equipment and office supplies, while important, do not pose the same level of risk, and therefore do not fall under the high-risk category.