They were detained and interrogated my friend
B. World War l
While white men went off to fight in the war, African Americans moved north for better job opportunities.
C. Growth of trade with the Middle East.
Because the Crusaders have ruled the Middle East for awhile, they established connections with some of the people groups there. And even though they lost the war, they still brought back valuable inventions and products (not inventions, like food, etc) that helped europeans in many way
hope this helps
C) The world trade organization
