Why should you ensure air circulation in the vehicle while you are stranded and the engine is running?

• To prevent carbon dioxide poisoning
• To prevent oxygen poisoning
• To prevent carbon monoxide poisoning
  Explanation:

  "Ensuring proper air circulation while stranded and the engine is running helps prevent carbon monoxide poisoning, which can result from exhaust fumes leaking into the vehicle. Always crack a window slightly and make sure the exhaust pipe is not blocked by snow or debris."
• None of the above