Answer:
2) Members of Ummayad clan served as Caliphs following the death of Muhammad.
Step-by-step explanation:
Caliph in Islam means the ruler of the Muslim community. It acquired its true meaning after the death of Prophet Muhammad. After his death, it took shape as an institution. After Prophet's demise, one of his friend and companion Abu Bakr was elected by the majority as the leader of the Muslim Community. He assumed the title "Khilafat rasul Allah", which means the " Messanger of the God ". The title of Caliph was used by the Ummayad rulers of Damascus and later by the Abbasid caliphs of Baghdad.