The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. In June 1914, a Serbian-nationalist terrorist group called the Black Hand sent groups to assassinate the Archduke.
The correct answer should be - a botanist who s<span>tudied nature to uncover why a certain plant kept dying.
The most important principle of Enlightenment is reason and knowledge - so instead on relying on superstition and unreliable facts, this person decided to actually explore and study nature further to reach a conclusion him/herself.
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C. his comparison of moral courage to bravery in battle and intelligence
(Not sure, but I hope this helps)
