What is the main reason the United States removed the Taliban from power shortly after the September 11, 2001, attacks?

After the September 11 attacks, the United States sought to dismantle al-Qaeda, the terrorist organization responsible for them. The Taliban government in Afghanistan allowed al-Qaeda to operate from its territory and refused to hand over its leaders, which led the United States to launch military action and remove the Taliban from power. Therefore, the correct choice is D, the Taliban allowed al-Qaeda to use its country as a base.

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