Which of the following describes the main components of the START triage system?

The main components of the START (Simple Triage and Rapid Treatment) triage system focus on the rapid assessment and categorization of patients in a mass casualty scenario. This system is designed to quickly identify those who require immediate medical attention versus those who can wait for care. START triage uses a simple, systematic method to evaluate patients based on their ability to walk, their respiratory rate, perfusion, and mental status. This allows responders to prioritize care effectively under time constraints and with limited resources, ultimately maximizing survival rates among the injured.

In contrast, other options touch on aspects of patient evaluation but do not encapsulate the triage system's primary purpose. A focus solely on airway and breathing does not cover the comprehensive assessment needed to categorize multiple patients quickly. The idea of assessment followed by immediate transport does not align with START’s approach of categorizing patients before transport decisions are made. Additionally, in-depth medical evaluations are impractical in a triage situation where speed is essential, as they could delay essential care for those who need it most urgently.