What is the rule regarding overtaking another vehicle immediately before or on a marked pedestrian crosswalk (pješački prelaz)?

1. Overtaking another vehicle immediately before or on a pedestrian crosswalk is strictly prohibited by law
2. Overtaking is permitted if the driver sounds the horn
3. Overtaking is permitted if travelling at less than 30 km/h
4. Overtaking is permitted only on multi-lane one-way streets