Answer: why, what is the purpose
Explanation:
When a corporation eliminates its competition, it becomes what is know as a trust.
Because the plague wasnt a virus that passed from person to person it was caused by infected fleas infecting people kind of like lyme disease.
Because Social Darwinism is a mash between "Survival of the Fittest" and socialogy, races and political groups/parties fought to be at the top. It's natural for large groups in population to think they are better than the rest and given the example of Hitler, Benito Mussolini, etc., it's not hard to see who Europeans think they are. The first option is most likely correct.