Situation–Reaction (Suspicious scooter left; rider departs on another bike):\nIn a park, a young man arrives on a scooter, leaves it there, and rides off with someone else on a motorbike. What is your best action?

Introduction / Context:
Unattended vehicles may be stolen, used for crime, or simply abandoned. Citizens should avoid confrontation while ensuring authorities are notified for verification.

Given Data / Assumptions:

• You witnessed unusual behavior.
• There is a nearby police booth.
• Safety and legality are priorities.

Concept / Approach:
Reporting suspicious circumstances enables lawful checks (vehicle registration, theft reports, CCTV review). Confronting or chasing strangers is unsafe. Ignoring may let a problem persist.

Step-by-Step Solution:
1) Note scooter details: number plate, color, model, time.2) Inform the police booth briefly and accurately.3) Be available for a short statement if requested.

Verification / Alternative check:
Police can contact the owner or monitor the location; many such cases resolve benignly, but reporting is prudent.

Why Other Options Are Wrong:
Calling back or chasing risks confrontation. Ignoring neglects civic duty in a potentially sensitive situation.

Common Pitfalls:
Sharing identifiable information online; confronting groups alone.

Final Answer:
Inform the police at the nearby booth.