Difficulty: Medium
Correct Answer: Only II follows
Explanation:
Introduction / Context:
The collision is explicitly attributed to a signalling failure. Logical action should address the technical root cause and ensure it does not recur, while avoiding premature blame without investigation.
Given Data / Assumptions:
Concept / Approach:
Systems safety prioritizes root-cause analysis and corrective actions. Summary termination of motormen is unjustified unless evidence shows procedural violation beyond the system failure.
Step-by-Step Solution:
Verification / Alternative check:
Independent safety boards typically recommend technical audits, SOP updates, and redundancy measures after such incidents.
Why Other Options Are Wrong:
Common Pitfalls:
Blaming frontline staff for systemic failures without evidence.
Final Answer:
Only II follows.
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