Final answer:
Shah Ismail claimed that he was the long-awaited twelfth imam. He is also known for proclaiming himself as the Mahdi and founding the Safavid dynasty. Hazar Imam's brother is Prince Amyn.
Step-by-step explanation:
Shah Ismail, an important figure in Iranian history and the founder of the Safavid dynasty, claimed various titles and statuses. Among his claims was the proclamation that he was the Mahdi or messiah, a significant religious figure in Islamic eschatology. After emerging from exile at the age of twelve and rallying the Qizilbash troops, Ismail embarked on a military campaign and eventually declared himself shah, or emperor, of all Iran, in the city of Tabriz in 1501. As for Hazar Imam's brother, the correct answer is b) Prince Amyn.
During his rise to power, Shah Ismail signified his claim by underlying his lineage and spiritual status, but the option that best fits what he claimed about himself is b) that he was the long-awaited twelfth imam. Also, legitimate caliphs in Shia Islam are considered to be those who are descended from the Prophet Muhammad through his cousin and son-in-law Ali, as mentioned in the related context of Islamic dynasties and rulers.