What does the sign mean?

1. AOvertaking is forbidden from the place where the sign is placed until after the railway crossing.
2. BIncrease speed and cross the railway as quickly as possible. Finish overtaking after the crossing.
3. CWhen you see train lights, stop 20 metres before the track and do not try to overtake.
4. DStop at a distance of at least one metre from the track, to check whether another vehicle is not trying to overtake you.

Pick an answer to test yourself