Please help me with the answer

The correct answer is C. Iran’s government is led by a religious Supreme Leader who has more power than the secular Guardian Council.
Iran is considered the last country to still have a theocracy government. The official religion, the Islam which rules how the laws and policies are made.
Historically Iran has been governed by religious representant. Now it is a combination of Islamic theocracy with democracy, involving non-elected and elected leaders. The higher position is the Supreme Leader that do executive actions, but also supervise military, while the Council of Guardians is composed of 12 members and are pointed by the Supreme Leader.