The European Economic Community was an economic community started by France, Germany, Belgium, Italy, the Netherlands, and Luxembourg.
This community was a regional organisation that aimed to bring about economic integration among its member countries. It was created by the Treaty of Rome of 1957.
C.) To prevent East Germans from escaping West Germany.
The treaty of Versailles blamed the Germans for causing the war, even though it was the Austrians who started the war. The answer is that the allied powers blamed The Empire of Germany.