What poem? You didn't say.
Answer:
The cause in the following text is "John did not study"
Explanation:
Can you send a picture? I need more information about the article but I am pretty sure that it is A) the French invasion of Germany.
Expansion
The story, 'The Last Lesson' has been set in the background of the Franco-Prussian war that was fought in 1870-71 between Prussia and France. The Prussians captured the districts of Alsace and Lorraine. New orders were issued according to which German language was to be taught in place of French in these two districts. It doesn’t have anything to do with World War l or ll so it have to be A) or D). The Germans didn’t invade Alsace, the Prussians did so D) can’t be it. The only answer left is A) so you’re answer would have to be A).
