What military advantage did Germany have over France at the beginning of
World War II?

The French created a wall among their border with Germany as shown with the yellow line on the map but the Germans knew that the french made that wall so instead of going head on against it they simply just went around by going into Belgium  and attacking them from behind              

Explanation:

By the way when I said wall I meant like a wall of troops not like a wall like the great wall of china

d) all choices are correct

jewish people, gypsies, and political opponents.