How did Otto von Bismarck help to bring about German unification?

He convinced the Austrian emperor to form a pan-German military alliance.

As minister president, he achieved political compromises with the Prussian legislature.

He became a strong influence on the king and encouraged the buildup of the military.

He created the position of kaiser, serving as the first one in the German Empire.

is it c?

Yes, option C is correct. Otto von Bismarck, as a key figure in German politics during the late 19th century, played a significant role in bringing about German unification. As Minister President of Prussia, Bismarck encouraged the buildup of the military, which later played a crucial role in the unification process. By expanding and modernizing the Prussian army, he aimed to enhance Prussia's power and influence in Germany. Bismarck's strong influence on the Prussian king, William I, also allowed him to pursue his goals effectively. Therefore, option C accurately describes Bismarck's contribution to German unification.