Final answer:
Passing on the right by crossing a solid white line is illegal and unsafe, and while certain emergency situations may ethically justify breaking traffic laws, this is generally not permitted.
Step-by-step explanation:
Passing on the right of another car by crossing the solid white line that marks the edge of the roadway is illegal and unsafe. Traffic laws are in place to ensure the safety of all road users, and solid white lines are generally meant to signal to drivers that lane changes at that point are hazardous and not permitted. In the referenced emergency situation, the ethical approach of Rule Utilitarianism (RU) might justify breaking a traffic light law due to the high utility of getting a pregnant woman to the hospital to give birth. However, in standard situations, adhering to traffic laws, including not crossing solid white lines to pass, is both legally required and the safer option for everyone on the road.