What should you do if you witness a crash?

• Move all vehicles involved to the side and turn off their ignitions
• Call the police if you have a phone or ask someone else to call
• Check if anyone is injured
• All of the above
  Explanation:

  "If you witness a crash, first check to see if anyone is injured. If you have a cell phone, call the police. If not, ask someone else to call or flag down a passing vehicle for help. Move all vehicles involved to the side of the road and turn off their ignitions to prevent further danger."