Situation–Reaction (Home Safety – Repeated Scenario) You are alone at home, there is risk of thieves around, and you hear a knock at the door. What should you do first?

Introduction / Context:
This repeats a home security scenario. The principle remains: verify identity without compromising safety.

Given Data / Assumptions:

• You are alone.
• Threat environment is elevated.

Concept / Approach:
Visual verification before opening; do not disclose you are alone; contact help if suspicious.

Step-by-Step Solution:

Verification / Alternative check:
Balances courtesy and safety.

Why Other Options Are Wrong:

Common Pitfalls:
Unlatching chains early, oversharing.

Final Answer:
Peep from a secure window or peephole and open only if you recognise the person.