How much fuel can a vehicle consume for every 10 minutes of idling?

• About one-third of a litre
  Explanation:

  "On average, a vehicle consumes approximately one-third of a litre of fuel for every 10 minutes of idling. To save fuel, it’s recommended to turn off the engine if you anticipate being stopped for a prolonged period."
• About two-thirds of a litre
• About a litre
• None of the above