Answer :
The US innovation of Afghanistan was a response to the 9/11/01 attacks on the US. So A.
Answer: A) To respond to Terrorist attack on U.S territory
Explanation:
The United States invaded Afghanistan after a series of four terrorist attacks on September 11th, 2001 coordinated by the Islamic terrorist group al-Qaeda. On October 7th, 2001, U.S. supported by close allies, invaded Afganistan. The main objectives were to dismantle al-Qaeda and to remove the Taliban from power.