What is the role of religion in Iran’s government?

A. Iran’s government is elected in free and fair elections and religious leaders rarely win.
B. Iran’s government is led by a secular president who has more power than the religious supreme
C. Irans government is led by religious supreme leader who has more power than the secular guardian council
D. Irans government is led by religions leaders and laws must not violate Islamic teachings

C. Irans government is led by religious supreme leader who has more power than the secular guardian council