## Core Concept
In disaster management, patients are often categorized based on the severity of their injuries and their chances of survival. This process is known as **triage**, which is a French term meaning "to sort" or "to sift". Triage helps prioritize patients for treatment when resources are limited.

## Why the Correct Answer is Right
The correct categorization in triage involves classifying patients into groups based on the urgency of their need for medical intervention. The commonly used triage categories are:
- **Immediate (or Red)**: Patients with life-threatening injuries who require immediate treatment to survive.
- **Delayed (or Yellow)**: Patients with serious injuries but can wait a short period for treatment without significant risk.
- **Minimal (or Green)**: Patients with minor injuries who can walk and do not require immediate medical attention.
- **Expectant (or Black)**: Patients with severe injuries who are unlikely to survive even with treatment, and thus, their treatment may be delayed or withheld to prioritize those with a better chance of survival.

## Why Each Wrong Option is Incorrect
- **Option A:** This option is incorrect because it does not accurately represent the standard triage categories used in disaster management.
- **Option B:** Similarly, this option does not align with the recognized triage categories.
- **Option D:** This option is also incorrect as it does not reflect the standard approach to categorizing patients in disaster scenarios.

## Clinical Pearl / High-Yield Fact
A key point to remember is that the goal of triage is not to make a definitive diagnosis but to prioritize treatment based on the urgency of need. A classic mnemonic to help remember the triage process is **"T" - Treat, **"R" - Re-triage**, **"I" - Isolate**, and **"A" - Allocate** resources accordingly. However, the most critical aspect is understanding that triage decisions are dynamic and may change as resources and patient conditions evolve.

## Correct Answer: C.