What is a “pedestrian crossing”?

1. A part of the pavement that is marked for pedestrian crossing
2. Correct answer: A part of the road designated and marked for pedestrians to cross.
3. A part of the road edge that is marked for pedestrian crossing
4. A part of the road that is marked for pedestrian crossing, including the pavement

WhyA pedestrian crossing is a marked part of the roadway for pedestrians to cross. The pavement and the shoulder are not part of it.