CHICAGO (AP) — Across the U.S., COVID-19 relief money is helping to subsidize growing numbers of big-city schools with small numbers of students. When the money runs out in a few years, officials will face a difficult choice: Keep the schools open despite the financial strain, or close them, upsetting communities looking for stability for their children. An analysis by Chalkbeat and The Associated Press shows more than one in five New York City elementary schools had fewer than 300 students last school year. In Los Angeles, that figure was over one in four. In Chicago it has grown to nearly one in three.