All of the above !!!!!!!!
For statement 1. It is a positive to an extent. Stop sighs can often be covered in graffiti, which can began to cost more and more every time you repaint them. For statement 2 and 3. Traffic signals would cause less accidents because of the fact that they “force” you to stop, they give every car a chance to go, and give pedestrians the right of way to walk as well.
Answer:
One has not only a legal but a moral responsibility to obey just laws. Conversely, one has a moral responsibility to disobey unjust laws. Any law that uplifts human personality is just. Any law that degrades human personality is unjust.
Martin Luther King Jr. said that.