Answer:
the U.S. invasion of Afghanistan in 2001 led to B, Many terrorist groups relocating to Pakistan
Explanation:
Dubbed “Operation Enduring Freedom” in U.S. military parlance, the invasion of Afghanistan was intended to target terrorist mastermind Osama bin Laden's al-Qaida organization, which was based in the country, as well as the extreme fundamentalist Taliban government that had ruled most of the country since 1996
It held control of most of the country until being overthrown after the American-led invasion of Afghanistan in December 2001 following the September 11 attacks.
...
Taliban.
Taliban طالبان (Pashto)
Headquarters Kandahar, Afghanistan (1996–2001)
PLEASE MARK BRAINLIEST!! HAVE A GREAT DAY AND GOD BLESS!!!!!!!!!!!!!!!!!