To determine which school has the lowest enrollment based on the graph you described, we would need to evaluate the heights of the bars representing each school. However, since I cannot see the graph, I cannot provide a definitive answer.
If you have access to the graph, look for the bar that reaches the lowest level on the vertical scale for enrollment. The school associated with that bar would be the one with the lowest enrollment.
If you can provide the enrollments for each school, I can help you identify which one is the lowest.