Map of German Territorial Changes Versailles Treaty, 1919. A dark line marks the border of Germany's territory before World War 1. A thin light line and dark shaded area marks Germany's territory after the Versailles Treaty. Germany, East Prussia, Poland, Czechoslovakia, France, and the Netherlands are labeled. Clockwise parts labeled are Ceded to Denmark, Ceded to Poland, Ceded to Czechoslovakia, Administered by the League of Nations until 1935, Returned to France, Returned to Belgium, Demilitarized Zone 1919 to 1936. Which of the following best explains the main motivation for removing territory from German control after World War I, as shown on the map?

New borders were drawn strictly to separate people according to their nationality.
Allied nations wanted to diminish Germany’s economic and military power.
Allied powers took land to compensate themselves for the damages of the war.
Buffer zones were put in place to protect Germany’s neighbors from future aggressions.