When a truck becomes disabled on a highway where the speed limit exceeds 60 km/h, flares or reflectors must be placed approximately what distance ahead of and to the rear of the disabled vehicle?

• 15 m (50 ft.)
• 30 m (100 ft.)
  Explanation:

  "On highways with speed limits over 60 km/h, place flares or reflectors approximately 30 m (100 ft.) ahead of and behind the disabled vehicle to warn other drivers and ensure safety."
• 45 m (150 ft.)
• 60 m (200 ft.)