German unification was the immediate result of:
Napoleon Bonaparte’s surrender at the Battle of Waterloo

Otto von Bismarck’s wars with Denmark, Austria, and France

Maria Theresa’s reign as an enlightened despot

Archduke Franz Ferdinand’s assassination in Sarajevo

The correct option is Otto von Bismarck’s wars with Denmark, Austria, and France.

Explanation:

German unification was an outcome of the Franco-German war during the 1860s. Otto van Bismarck was the one from Prussia who first competed with Austria and then collaborated with it to start a war with Denmark. Thus, they finally defeated France and declared the German empire.

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in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.

i believe the answer to your question is b. pay your bills early