What should you do if you become stranded in snow?

• Leave the vehicle and seek help immediately.
• Remain in your vehicle and run the engine only for brief times.
• Open the window to prevent carbon monoxide poisoning and ensure the tailpipe is free of snow and debris if possible.
• Both B & C
  Explanation:

  "If you get stranded in snow, remain in your vehicle. Run the engine only for brief times and open the window to prevent carbon monoxide poisoning. If possible, make sure the vehicle’s tailpipe is free of snow and debris."