The national economy is the option which was most significantly impacted by world war 1.
The World war 1 was caused by number of politics, secret alliances and imperialism pride among nation in the world etc
Majority of the nation which involved in WWI later regret the war because most of the funding came from loan which led to economic problem
Hence, the national economy is the option which was most significantly impacted by world war 1.
Therefore, the Option A is correct.
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it's D vital hope that helps
Answer: To protect Berlin from the west.
Explanation:
The Berlin Wall was built by the German Democratic Republic during the Cold War to prevent its population from escaping Soviet-controlled East Berlin to West Berlin, which was controlled by the major Western Allies.