Answer:
OC. to find and prosecute the terrorists responsible for the 9/11 attacks
Explanation:
The United States invaded Afghanistan in 2001 primarily:
**OC. to find and prosecute the terrorists responsible for the 9/11 attacks**
The invasion was a response to the 9/11 attacks, with the objective of dismantling the Taliban regime in Afghanistan, which was harboring Osama bin Laden and Al-Qaeda, the terrorist organization responsible for the attacks on September 11, 2001.