Which sign would most likely appear in the vicinity of a school?

The presence of a school sign in the vicinity of a school is crucial for ensuring the safety of both students and pedestrians. These signs serve to alert drivers that they are approaching an area where children are likely to be present, thereby prompting them to reduce their speed and remain vigilant. The school sign typically features recognizable symbols or images specifically indicating the presence of a school zone, and may include additional warnings such as "Children at Play" or reduced speed limits during school hours.

In contrast, the other signs listed refer to different traffic conditions. A right lane ends sign indicates that the right lane of traffic is going to terminate, which is not related to school zones. A low clearance sign warns drivers about an upcoming structure or overpass that limits the vertical height of vehicles, which is also not relevant to the school setting. Finally, a divided highway ends sign informs motorists that they are transitioning from a divided highway to a regular roadway, lacking any connection to the school environment. Thus, the school sign is the most appropriate and indicative of the area surrounding a school.