Sovereignty refers to the right that confers the authority to rule over a certain territory.
The question refers to France, which has sovereignty to rule in their department in South America, know as the French Guiana, which is a region of France and therefore part of the European Union. Since the independence of Belice in 1981, this is the only mainland American territory which is still part of a European country.
The events on the said day/night was the Night of the broken Glass, or Kristallnacht which were the day when the persecution of the Jews by the Nazis openly started. It started because of the killing of the Nazi German Diplomat, Ernst vom Rath by a Polish Jew. The term Kristallnacht was coined because of the broken glass produced by the ransacking of Jewish establishments and Synagogues.
The correct answer is B) by establishing overseas colonies.
European nations competed for power in the years before World War I by establishing overseas colonies.
Between 1881 and 1914, European powers competed for each other to establish more colonies in Africa and other parts of the world. In the case of the African continent, the dispute was so high that the term of "Scramble for Africa" was coined. European countries such as Great Britain, France, and Portugal occupied, colonize or split the African territories to get more power and dominion.
World War 1 started in August 1914.
It included all except for C: Cortes.