Who Was President Bush Referring to When He Asked a Joint

Who was President Bush referring to when he asked a joint session of Congress,"Why do they hate us?"

A) the terrorists who attacked the United States on September 11,2001
B) the leaders of Iran,who threatened to launch a nuclear attack against Israel,an American ally
C) the people of Iraq,who opposed the U.S.occupation of their country
D) the leaders of the Taliban in Afghanistan,who vowed to fight the United States