The German people united behind King Wilhelm because
a. The Prussian army defeated all other claimants to the throne
b. He promised them a constitutional monarchy
c. He was the rightful heir to the Holy Roman Empire
d. The wars engineered by Bismarck generated strong nationalist sentiment
One of the reasons why the German people united behind King Wilhelm was because "d. The wars engineered by Bismarck generated strong nationalist sentiment," since this was after German unification.
