What distance shall we keep from the vehicle travelling ahead of us while driving?

1. AA distance that prevents other vehicles from entering it.
2. BAny distance at which we can see the rear wheels of the vehicle ahead of us while driving.
3. CThe distance required by law, which will allow the prevention of an accident at all times, taking all factors into account.
4. DAny distance that will allow us to see clearly what is happening ahead of the vehicle travelling in front of us, at all times.

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