A Physical Security Personnel metric measures the performance or responsiveness of individuals or teams responsible for maintaining physical security systems. "Integrator response to a service request" measures how quickly and effectively a technician or support provider addresses security system issues-making it a valid personnel performance metric.
A and C relate to threat detection or monitoring, not personnel metrics.
B is a system-level metric, not specific to personnel.
References:
PSP Study Guide - Security Operations and Performance Metrics
POA Manual - Maintenance and Support Standards

An alarm sensor (also called a detector or initiating device) detects specific changes such as motion, temperature, or opening/closing of entry points. It is the primary component in any detection system and initiates the alarm response.
References:
ASIS International, Protection of Assets (POA), Chapter: Intrusion Detection and Alarm Systems ASIS PSP Certification Study Manual, Domain 2: Physical Security System Components

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

Ignition temperature (also known as autoignition temperature) is the minimum temperature at which a material will ignite spontaneously without an external flame or spark. Each material has a unique ignition temperature, which is a critical factor in fire safety and prevention.
Excess temperature (A) and Agitate temperature (C) are not standard fire science terms.
"None of the above" (D) is incorrect since ignition temperature is the valid term.
References:
PSP Study Guide - Fire Risk and Safety
ASIS POA Manual - Combustion Principles

Gopher is a hypertext-based information retrieval tool that predates the World Wide Web. It uses a series of text-based menus to allow users to navigate and access various types of textual information hosted on servers.
It was one of the first attempts at organizing and accessing online information in a user-friendly way.
Consortium (A) refers to a group or association, not a technology.
Hyper-text based tool (B) is descriptive but not the specific name of the system.
Symantec (C) is a cybersecurity software company, unrelated to menu-based text access systems.
References:
PSP Study Guide - Internet Tools and Information Systems
ASIS POA Manual - Early Internet Technologies