What is the meaning of the following road marking?

- Parking area for public vehicles.
- A marked traffic island in the center of the roadway.
- Correct answer: No parking.in this area
- A place where parking is permitted for a short time.
Why this is the answer
The correct answer in the official bank: No parking.in this area
A white rectangle with two crossing diagonal lines inside it, next to the edge of the road, indicates a place where parking is prohibited. So it is not a traffic island, nor a place where parking is permitted for a short time, nor a parking area for public vehicles.