The primary objective of defensive mode is to limit exposure by:

• A. Limiting exposure and avoiding direct contact with the material
• B. Evacuating all persons regardless of risk
• C. Immediately neutralizing the material
• D. Maximizing area of operation

Answer: (A)

Defensive mode is all about protecting people by limiting exposure to the hazardous material and avoiding direct contact with it. The best option reflects this focus: it emphasizes keeping responders and bystanders away from the material and using barriers, remote or indirect tactics, and containment measures rather than entering the danger zone. Evacuating everyone regardless of risk isn’t the primary aim because decisions are risk-based and may involve sheltering in place or selective evacuation rather than blanket removal. Immediately neutralizing the material isn’t appropriate in defensive mode since it often requires close proximity to the hazard and specialized, high-risk actions. Maximizing the area of operation would increase exposure and unnecessary risk, which clashes with the goal of containment and protection.