While driving, what should most of your attention be directed at?

• Most of your attention should be on your car only.
• Most of your attention should be on the vehicle in front of you.
• Most of your attention should be on the vehicle behind you.
• Most of your attention should be given to looking forward and scanning for hazards that are developing ahead of you.
  Explanation:

  "Most of your attention should be given to looking forward and scanning for hazards that are developing ahead of you."