What is the ideal speed when passing an emergency vehicle or tow truck with its flashing lights on?

• Reduce speed to 80 km/h
• Reduce speed to 70 km/h
• Reduce speed to 60 km/h
  Explanation:

  "When passing a stopped emergency vehicle or tow truck with flashing lights, motorists must reduce their speed to 60 km/h, or the posted speed limit if it's lower, to ensure safety for all involved."
• Reduce speed to 50 km/h