Answer:
D. Afghanistan
Step-by-step explanation:
Following the terrorist attacks of September 11, 2001, the US invaded Afghanistan where the alleged al Qaeda terrorist cell, led by Osama bin Laden, was supposed to function.
At the time, the Taliban, the radical Islamic group that ruled Afghanistan at the time, decided to protect bin Laden and refused to turn it over to the US government. Then, a month after the September 11 attacks, the United States launched air strikes against the country. However, the terrorist Osama bin Laden was not murdered until 2009 in Pakistan. To this day there are US troops in Afghanistan aimed at ensuring that radical groups do not take over the government again and plan terrorist attacks in the West.