Answer:
A measure to be maximized in
The unification of Germany into a politically and administratively integrated nation state officially occurred on 18 January 1871, in the Hall of Mirrors at the Palace of Versailles in France
It is technically false that the Frontier ended when the open land was gone, since the open land was never "gone" just either taken up by private owners.

The main reason was the lack of money .
so here your answer is
B. objection to the inability of the government to respond to economic crisis
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