To restore the Taliban to leadership is not a goal of the U.S. in Afghanistan. Option B is correct.
The United States invasion of Afghanistan occurred after the September 11 attacks in late 2001, supported by close US allies. Its main goals publicly known were to dismantle al-Qaeda, and to deny it a safe base of operations in Afghanistan by removing the Taliban from power.
U.S. President George W. Bush urged that the Taliban hand over Osama bin Laden and expel al-Qaeda.
