The correct answer is D. He believed that a war would give the people of Germany a strong sense of nationalist pride
Step-by-step explanation
The Franco-Prussian War was a conflict in which the French Empire and the Kingdom of Prussia (German Empire) were faced, for about a year between the years 1870 and 1871. In this conflict, Otto Von Bismarck, who at that time was The Prime Minister of Prussia saw the war with France as an opportunity to unite the southern German states in the spirit of building a strong German Empire through nationalist pride. Therefore, Bismark convinced the inhabitants of the southern states (Bavaria, Württemberg, and Baden) to support the Prussian cause against France. Finally, France has to give in to the strength of the Kingdom of Prussia. Therefore, the correct answer is D. He believed that a war would give the people of Germany a strong sense of nationalist pride