Final answer:
If Otto von Bismarck were alive, he could use the prefix Emperor that he received in 1871. Bismarck played a crucial role in unifying Germany through wars and diplomacy.
Step-by-step explanation:
If Otto von Bismarck were alive, he could use the prefix C. Emperor that he received in 1871. As the main architect of the German Empire, Bismarck played a crucial role in unifying Germany through a series of decisive wars and diplomatic maneuvers. On January 18, 1871, he was appointed Imperial Chancellor of the German Empire.