(mc)why was otto von bismarck nicknamed the "blood and iron chancellor"?
he suffered from an iron deficiency disease.

he received a disabling wound in battle.

he put political enemies into prison.

he preferred to use armed force.

I believe the correct answer from the choices listed above is the last option. Otto von Bismarck was nicknamed the "Blood and Iron Chancellor" because he preferred to use armed force. Bismarck knew that war could accomplish his goals. He once remarked that things should be settled by “blood and iron”.

Hope this answers the question. Have a nice day.