Answer:
The Iranian Revolution meant the replacement of a pro-Western authoritarian monarchy by a republican, authoritarian and anti-Western theocracy based on the concept of Guardianship of the Islamic Jurist.
Step-by-step explanation:
The Iranian Revolution refers to the process of mobilizations that led to the overthrow of the Pahlavi Dynasty under the shah Mohammad Reza Pahlevi in 1979 (who had the support of the United Kingdom and the United States), and which meant the establishment of the Islamic Republic currently in force in Iran. The leader of the revolution was Ayatollah Khomeini, who had support from various leftist and Islamic organizations plus the Iranian student movements while he was in exile.