what is the main reason the united states removed the taliban from power shortly after the september 11, 2001, attacks?
a. the taliban refused to abide by a peace treaty it signed with the united states.
b. the taliban planned to invade us territories.
c. the taliban attacked us allies with weapons of mass destruction.
d. the taliban allowed al-qaeda to use its country as a base.

D. The Taliban allowed al-Qaeda to use its country as a base.

Explanation:

The Taliban, recently changed to the name of "Islamic Emirate of Afghanistan", are a fundamentalist political-military faction of the Sunni Islamic Republic of Afghanistan, currently carrying out a war within the same country. Founded by veterans of the war in Afghanistan against the invasion of the Soviet Union, in the midst of a war between mujahideen groups, the Taliban movement follows an extremist modernist Islamic doctrine, albeit disguised as orthodoxy, whose idea of society is based on strict interpretations of what it must be the life of a Muslim, without giving room for other interpretations that allow some kind of "libertinism", as is usual in democratic societies, and under which he ruled his country from 1996 until he was overthrown in the country in 2001.

to contain the wave of communism