What role did Otto von Bismarck play in the unification of Germany?

Question

He instituted lebensraum to formally give Germans more living space by taking over Prussian territory.

He unified the 29 independent states under the Weimar Republic using the Treaty of Versailles.

He began the March Revolution in Germany, which was based on the principles of Karl Marx and led to the overthrow of Kaiser Wilhelm I.

He started wars with France, Austria, and Denmark to unify Germans in the fight to preserve their territory.

Answer 1

Your answer is?

Answer 2

I agree.

Answer 3

Thanq

Answer 4

You're welcome.

Answer 5

I just took the test, C is wrong.