What is the effect of keeping a gap on the driver's field of vision?

1. AThe gap affects the field of vision when driving in conditions of traffic congestion only ("traffic jams").
2. BKeeping a gap has no connection at all to the field of vision of the vehicle driver.
3. CKeeping a gap affects the field of vision only when driving at high speeds and in stormy weather.
4. DThe greater the distance we keep from the vehicle ahead of us, the more the field of vision will improve.

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