Which PL-4 resource involving air traffic control navigational aid facilities?

Which PL-4 resource involving air traffic control navigational aid facilities?

• A. Air Traffic Control Navigational Aid Facilities
• B. Pharmacies and Controlled Substance Storage Areas
• C. Bulk Petroleum, Oils and Lubricants (POL) storage areas
• D. Residential Housing

Answer: (A)

PL-4 resources categorize facilities by their role in operations, focusing on critical infrastructure. The option that explicitly names air traffic control navigational aid facilities matches the resource type described, since it directly refers to the ATC navigational infrastructure that supports safe flight operations. The other options point to pharmacies and controlled substances, bulk fuel storage, and residential housing—unrelated to air traffic control navigational aids and not the PL-4 resource described here.

PL-4 resources categorize facilities by their role in operations, focusing on critical infrastructure. The option that explicitly names air traffic control navigational aid facilities matches the resource type described, since it directly refers to the ATC navigational infrastructure that supports safe flight operations. The other options point to pharmacies and controlled substances, bulk fuel storage, and residential housing—unrelated to air traffic control navigational aids and not the PL-4 resource described here.