It is mainly made of granite
A is the correct answer
B is not
because higher education did not contribute to Adolf Hitler (the rule at the time)'s view on how Jews were an inferior race to the superior Aryans
C is not
because Hitler's beliefs were against Marxism entirely
D is not
because Hitler's beliefs were that thr Aryan race was the superior race, therefore, should not be destroyed
By the draft, mainly, and new immigrants from Germany and Ireland were paid to enlist.