Base your answer to this question on the passage below and you knowledge of social studies. "When you enter Tehran, you see all the cars and that deceptive (misleading) exterior, but you haven't gone to the other side of the city. Look at those pits, those holes in the ground where people live, dwellings where you reach by going down a hundred steps into the ground, homes people have built out of rush matting or clay so their poor children can have somewhere to live." - Ruhollah Khomeini According to the passage, that is an excerpt from a speech given by Ruhollah Khomeini prior to the Iranian Revolution in 1979, what is at least one major reason for the revolution?