Jake wasn’t impressed with what he had done. “Stopping the bus,” he said, “was easy pared to playing Grand Theft Auto III,” his favorite video game. The bus driver was taken to the police station. He was at first charged with “leaving a child alone while motor is running.” The lawyer said he hoped to upgrade the charge because of the number of children (twenty) on the bus. What does the underlined word “upgrade” mean in the fourth paragraph?