I need the choices; but basically Al Qaeda is a terrorist group responsible for 9/11. So they are honestly the reason that we have to go through so much security when we go on airplanes. It's also the reason we have 9/11 as a holiday and have a memorial museum dedicated to that unfortunate day. If you told me the choices I could help though!
A. Front is the correct answer
He brought French culture to England, he changed the official language of England to French, He ordered a detailed survey of land ownership
He called the imaginary barrier the "Iron Curtain". He used this image to oppose the Soviet union expansion, and keep in communism in check.
Hope this helps!!!:)