Biological Weapons deliver, disperse, or disseminate a biological agent (including arthropod vectors).

• A. Chemical Weapons
• B. Nerve Agents
• C. Biological Weapons
• D. Riot Control Agents

Answer: (C)

Biological weapons rely on delivering or disseminating a biological agent to cause disease or harm, and that can include using living vectors like arthropods to spread the agent. The defining point is that the weapon’s impact comes from a biological source and its ability to spread through biological means, not from chemical toxicity. Chemical weapons, including nerve agents, rely on toxic chemicals rather than living biological agents, and riot control agents are chemical irritants used to incapacitate. When the focus is on propagating a biological agent—whether by aerosol, contaminated material, or a living carrier—the category that fits is biological weapons.