Arrange the given items into a logically coherent sequence that mirrors real-world cause–effect and administrative response. Provide the most sensible order: 1) Protect (preparedness and mitigation) 2) Pressure (atmospheric change) 3) Relief (aid after impact) 4) Rain (precipitation) 5) Flood (resulting inundation) Choose one option that best fits a practical timeline.

Introduction / Context:
This is a reinforcement entry mirroring the same reasoning in disaster chronology problems. Atmospheric drivers precede weather events, which may lead to hazards; actions are then staged around the hazard window (mitigation and emergency protection) and followed by relief once impacts occur.

Given Data / Assumptions:

• Pressure changes can precede and drive Rain.
• Heavy Rain can result in Flood.
• Protection measures are mobilized around impending/immediate hazard.
• Relief efforts follow once damages occur.

Concept / Approach:
Maintain logical causality and real-world emergency management flow.

Step-by-Step Solution:
Start with 2 → then 4 → then 5 → deploy 1 → conclude with 3.

Verification / Alternative check:
Any sequence putting relief before flood is untenable; any that places flood before rain is illogical.

Why Other Options Are Wrong:
They violate basic cause–effect or timing of actions.

Common Pitfalls:
Confusing long-term mitigation with event-time protection.

Final Answer:
2, 4, 5, 1, 3