Which of the following is not one of the "Three Rivers of Rage" that caused 9/11?

All four are complete B.S. The attacks on New York and Washington DC on 9/11/01 by Al Qaeda were caused by the significant portion of Muslims who support the aims of extending the califate of Islam around the world, the subjugation of all Crusaders and Zionists (read Christians and Jews, the Dhimmi of the Quran) and the religious belief of a guaranteed place in Paradise for dying in the course of Jihad. There are no rivers of rage caused by politics or economics. That is lefty apologism. Leftists reject religion and seek non-religious answers, in the case of Marxists they have to be economic answers. The reality is that the Muslims who support Al Qaeda, and there are tens of millions of them, want you to die. Now. Money has nothing to do with it. There has been squalor in the presence of opulence in the Middle East for millenia.