You're in control of "rambunctious" if you chose A! We know that answer B can't be right: if "rambunctious" kids are "unruly" and "not under control," they wouldn't be sitting quietly at their desks. Answer C implies that all the kids are watching practice, not being "exuberant." Answer D certainly shows the kids aren't in control, but it misses that "rambunctious" also means "exuberant," a word that usually describes joyously or playfully unrestrained behavior but not violent behavior. That leaves us with answer A, where the rambunctious children are chasing each other around the room.