Answer: A. Mecca's leaders forced Muhammad to leave the city.
Step-by-step explanation:
Because of his religious beliefs, Muhammad, along with his followers, was forced to leave Mecca. It happened in 622 AD. This event in history is known as Hijra. In this way, Muslims migrated to Mecca to practice religion freely. Muhammad's followers were later forced on several occasions to clash with other tribes in the area of today's Arabian Peninsula.