Keeping a safe distance from the vehicle in front of us is required:
- Only when the driver is very tired and his responses are not quick enough.
- In order to drive in the correct lane and at a proper speed.
- In high speeds only and during stormy weather conditions.
- Correct answer: In order to prevent a rear-end collision when the vehicle in front stops or slows down.
Why this is the answer
The correct answer in the official bank: In order to prevent a rear-end collision when the vehicle in front stops or slows down.
A gap to the vehicle ahead gives you the time and space to notice it braking or slowing, react, and stop without hitting its rear. This is needed at all times, at any speed and in any weather, not only when the driver is tired. At higher speeds, on wet roads or when tired, the gap should be even larger.