What was one consequence of the September 11, 2001, terrorist attacks?
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A. Terrorism became a priority of U.S. foreign policy.
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B. The United States removed nuclear weapons from Iraq.
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C. The United States ended the Cold War with the Soviet Union.
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D. President Barack Obama launched the war on terror.
The impact left a gaping, burning hole near the 80th floor of the 110-story skyscraper, instantly killing hundreds of people and trapping hundreds more in higher floors.
