It is night time and you are driving home from the movies. You are travelling in a line of vehicles. What size gap should you leave between your vehicle and the vehicles in front of you?

• A. A gap of about 2 seconds so you can watch the vehicles in front closely and see when they are stopping.
• B. The same 3-second gap you would leave during the day.
• C. A gap of about 4 seconds as it is easy to misjudge distances at night.
  Explanation:

  "At night time it is more difficult to judge distances. Four seconds is a safe gap."