the us began fighting in afghanistan in 2001\nto combat terrorist groups.\nto support pro - democracy…

the us began fighting in afghanistan in 2001\nto combat terrorist groups.\nto support pro - democracy rebels.\nto stop nuclear development.\nto end border violence.

the us began fighting in afghanistan in 2001\nto combat terrorist groups.\nto support pro - democracy rebels.\nto stop nuclear development.\nto end border violence.

Answer

Answer:

A. to combat terrorist groups.

Brief Explanations:

The US - led invasion of Afghanistan in 2001 was a response to the September 11 attacks, aiming to combat terrorist groups like al - Qaeda which had bases in Afghanistan under the Taliban regime.