Answer:
Correct answer is C. the Taliban was removed from power.
Step-by-step explanation:
Options A and B are not correct as Osama Bin Laden escaped from Afghanistan and was later killed in Saudi Arabia and although al-Qaeda was hurt, it didn't totally disappear.
C is correct as Taliban regime was removed and new democratic regime, supported by United States was introduced.
Option D is also not correct as no weapons of mass destruction were found there.