Due to the fact that I have not read this book i would not be able to accurately answer this question however, I can offer a suggestion and that would be B.
Otto Von Bismarck was nicknamed the Blood and Iron Chancellor because HE PREFERRED TO USE ARMED FORCES. The correct option is D.
Otto Von Bismarck was called the Iron Chancellor as a result of his strict policies. One of his strict policies is his absolute belief in using armed forces and military operations as at when needed. Otto was a German, who has served as Chancellor under different government in Germany. He had the vision of uniting the German northern states and to weaken Austria and to make Berlin the center of German culture.
Macbeth<span> is quite interested in the </span>witches predictions but Banquo is suspicious.<span />