An electric strike allows for remote electrical locking and unlocking while still permitting free mechanical egress from the protected (inside) side of the door. This is essential for life safety and code compliance, especially in commercial and public buildings.
A (Vertical pin) is a mechanical lock component, not an electric device.
B (Electromagnetic) locks typically require power to release and may not allow mechanical egress without integration.
D (Delayed egress) restricts exit temporarily, which may violate free egress rules depending on application.
References:
PSP Study Guide - Locking Mechanisms and Egress Requirements
POA Manual - Electronic Access Control Devices

Comprehensive Detailed Explanation:
When assessing bombing risk, proximity to high-value or symbolic targets is a significant factor. Even if the facility itself isn't a primary target, it may suffer collateral damage due to its location near another targeted building. This is a key aspect of blast risk assessments.
A and C (urban area, high occupancy) increase general risk but are not definitive on their own.
D (domestic/international tenants) may affect threat level but is less relevant than target adjacency.
References:
PSP Study Guide - Bomb Threat and Blast Risk Assessment
POA Manual - Facility Vulnerability Evaluation

In supervised alarm circuits, resistors are placed at the end of the line (EOL) to monitor the circuit's integrity.
This setup helps detect any tampering, open or short circuits, or line interruptions. If the resistor is not at the end, it defeats the supervision purpose, as the system cannot verify whether the line is intact all the way to the device.
Placing resistors before or after each device is unnecessary and could create false readings.
Placing it in the control panel (D) bypasses the wiring run altogether, which defeats the supervision function.
References:
PSP Study Guide - Electronic Security Systems and Monitoring
POA Manual - Intrusion Detection System Design and Maintenance

Natural surveillance is a CPTED principle that enhances visibility in public or semi-public spaces to deter crime. Positioning kitchen windows to overlook a playground increases the likelihood of observation, reducing the opportunity for illicit behavior and enhancing safety.
A (Defensible space) is a broader concept that includes natural surveillance.
B (Territoriality) focuses on expressing ownership of space.
C (Overwatch) is a military/security term not directly used in CPTED.
References:
PSP Study Guide - CPTED and Urban Security Design
POA Manual - Natural Surveillance Strategies