Explanation: In 1885, Indian National Congress Party had pressed for self rule within the British Empire. They felt that the British did not deliver the significant reforms promised during the war as acknowledgment of their service.
In the wake of the February Revolution in Russia, Nicholas II lost power and became a regular citizen. Option B is correct.
Nicholas II was the last Emperor of Russia who hold his position from 1 November 1894 until his forced abdication on 15 March 1917. His reign was characterized by the fall of the Russian Empire from one of the foremost great powers of the world to economic and military collapse. He received the nickname Nicholas the Bloody or Vile Nicholas by his political adversaries due to the Khodynka Tragedy, anti-Semitic pogroms, Bloody Sunday, the violent suppression of the 1905 Russian Revolution, the execution of political opponents, as well as his responsibility for the Russo-Japanese War.
Canada is the Hat of the U.S. I think.
The main point of the excerpt is that readers should be aware of the damage that the war has done to a generation of men who were impacted by it, and read the book with this idea in mind.
The epigraph wants to make sure that readers who approach this book do it with the same purpose as the one with which the author wrote it. He does not want the readers to think of this book as an accusation, a confession or an adventure.