A political cartoon of Wilhelm the first trying on a new crown as Emperor of Germany. Otto Von Bismarck sketches a new map of Germany in the background. A servant holds up a mirror in front of the Emperor. What does this political cartoon suggest about how Germany achieved unification?

Otto von Bismarck was a puppet of Wilhelm I and did everything he was told.
Otto von Bismarck was the mastermind behind the creation of the German Empire.
Wilhelm I was a powerful and unifying force around whom all of Germany rallied.
Bismarck and Wilhelm I convinced German states to unify in a parliament meeting.