The correct answer is C) they were upset over the United States supporting Israel.
The ideology of Arab Muslims attacking the US is because they were upset over the United States supporting Israel.
The problems in the West bank between Palestine and Israel are the cause of many conflicts in the Middle East and a constant reason for attacking the United States. Since the US supports Israel, Arab Muslim Nations did not approve the procedure and do not like the foreign policy of the US in the region. Since the 1970s when Israel established in the Muslims area of Palestina, problems and armed incidents are the constant in that portion of the Middle East. Since that time the US has supported Israel in many forms due to the economic interest they have.
