Assuming that you want this simplified...


Use the FOIL method and combine like terms:


And your final answer is: 
Answer:
The unification of Germany officially took place on January 18, 1871. At that point, the Germanic states became the German Reich, which means German Empire. ... The victory in the Franco-Prussian War instilled confidence in Germany, causing it to act aggre-ssively in the years leading up to World War I.The Zollverein, or German Customs Union, was a coalition of German states formed to manage tariffs and economic policies within their territories.
(I hope this helps!)
My guess is b. Muhammad tughluq...... Sorry if it's wrong but I really think it is b.