What term describes biological, chemical, or nuclear weapons capable of mass casualties?

• A. Conventional weapons
• B. Biological agents only
• C. Strategic arms
• D. Weapons of Mass Destruction (WMD)

Answer: (D)

The idea here is recognizing the umbrella category that covers weapons able to cause mass casualties across different types. Weapons of Mass Destruction are defined as those that can inflict large-scale loss of life and widespread harm, and they include biological, chemical, and nuclear weapons. This broad label captures any device or agent designed to cause mass casualties, not just one specific type.

Why this term fits best: it groups together these high-harm weapons under a single descriptor used in policy and history to discuss international security, arms control, and ethics. Conventional weapons, by contrast, are standard battlefield arms that generally do not aim for mass casualties on a global scale. A broader term like strategic arms refers specifically to certain long-range nuclear forces and doesn’t cover chemical or biological weapons. The inclusion of biological agents only is too narrow because the term must cover chemical and nuclear as well.