Article 45 of Bahrain's Traffic Law Implementing Regulation obliges a driver to reduce speed in a defined list of situations. Which list is it?

1. Only when passing a police patrol vehicle
2. When passing through populated areas, entering bends, curves, slopes or intersections, approaching hospitals, schools, places of worship or pedestrian crossings, and when meeting or overtaking animals
3. Only between sunset and sunrise
4. Only when the vehicle is carrying passengers