Final answer:
True. In romantic ballets, male dancers took supporting roles on stage and continued as dance masters offstage to arrange the ballets.
Step-by-step explanation:
True. In traditional romantic ballets, male dancers often played supporting roles alongside the female lead. These roles typically involved partnering the female dancer and showcasing her talent. However, offstage, male dancers also played important roles as dance masters, choreographers, and arrangers of the ballets. They worked closely with the female dancers and the rest of the creative team to bring the ballets to life.