(1) The intersection at First Street and Charles Avenue should have traffic lights instead of the stop signs it has now. (2) Both streets have a lot of traffic and drivers do not always observe the "right of way" rules. (3) In addition, many people ride their bikes on these streets, including the students of the elementary school on Fourth Street. (4) Traffic lights would regulate the large amount of bike and auto traffic in a much safer way than the stop signs do. (5) Drivers stopped at the stop signs rarely check for bikes or pedestrians before proceeding. (6) My friend said she was almost hit by a car last week because she didn't know that bikes had to stop for stop signs. (7) I don't know if traffic lights are more expensive than stop signs, but even if they are, the safety of children is more important. Which sentence best states the central idea of the passage?

Your

1. Stop signs never work, and they all should be replaced with traffic lights.

2.While riding her bike, the writer's friend was almost hit by a car.

3.The intersection at First Street and Charles Avenue should have a traffic light.