Which term refers to the maintained space on both sides of a barrier to allow observation?

Which term refers to the maintained space on both sides of a barrier to allow observation?

• A. Temporary barrier.
• B. Clear zone.
• C. Strip grid.
• D. Fencing.

Answer: (B)

The main idea is the maintained open space around a barrier that allows observation. This area is kept clear on both sides so security personnel have an unobstructed line of sight, can detect movements, and react promptly. A clear zone fits because it specifically denotes this observation-friendly space. A temporary barrier describes the object itself, not the surrounding space; fencing is the barrier, and a strip grid isn’t the standard term for the space kept clear for monitoring.

The main idea is the maintained open space around a barrier that allows observation. This area is kept clear on both sides so security personnel have an unobstructed line of sight, can detect movements, and react promptly. A clear zone fits because it specifically denotes this observation-friendly space. A temporary barrier describes the object itself, not the surrounding space; fencing is the barrier, and a strip grid isn’t the standard term for the space kept clear for monitoring.