What is the meaning of alternating blue colored curbstones?

Choose an answer to test yourself:

1. ATo indicate and emphasize sidewalks and built traffic islands.
2. BParking space for vehicles according to conditions laid down by the local authority . usually for payment.
3. CNo parking or stopping besides the curbstones, except for taxis on an urban road.
4. DArranged parking space for public vehicles only.

Topic: Road Signs · עברית