What is the meaning of kerbstones painted alternately in red and white?

1. AStopping or parking on the road alongside the kerbstones is forbidden, except for taxis while picking up or dropping off passengers.
2. BA place for regulated parking by means of parking tickets.
3. CThe marking is intended to highlight separation areas, pavements and traffic islands, and it carries no restriction.
4. DStopping is permitted but parking is forbidden along the area marked red/white.

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