What effect does the distance between vehicles have on the overtaking process?

1. A Short distance reduces the field of vision and increases the risk in overtaking.
2. B The closer we are to the vehicle in front of us, the safer is the deviation while overtaking.
3. C The distance between vehicles has no effect on the safety of overtaking.
4. D The closer we are to the vehicle in front of us, the shorter and safer is the overtaking distance.