It is true because of politics and the government
I believe the answer you're looking for is "The columbian exchange." Hope this helps.
Do to the 9/11 attacks by al qaeda.
C is your answer it let communist countries under the USSR to transition over to Capitalism
The Velvet Revolution took place in Czechoslovakia in November and December 1989. Velvet in the name is a reference to its peaceful character.
It was a part of series of changes in Eastern Europe at the time.
