Question

what is an ayatollah?
a religious leader of iran
a person or group following a strict set of principles
the term for a king of iran
the act of doing what is required

Explanation:

An ayatollah is a high-ranking Shi'a Muslim religious cleric, and in Iran, they hold significant religious and political authority as key religious leaders. The other options are incorrect: the second defines fundamentalists, the third refers to a shah (not ayatollah), and the fourth describes obligation.

Answer:

a religious leader of Iran