You're answer is going to be C. "The Red Scare".
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Answer: All men are created equal and there are certain unalienable rights that governments should never violate.
Explanation:
The main reason the US Senate rejected the treaty of Versailles was because they feared that US involvement in the League of Nations would mean that American troops would be sent into Europe and settle European disputes.
Renaissance changed man’s view on man through art, literature, astronomy, and medicine.
•Astronomy - by showing that the lives of people were not controlled by outside institutions.
if only person was in charge of a government, it would gradually convert into a dictatorship, simply because there are no other branches of the government to keep the executive government in check. This is why governments have three branches, to make sure power is balanced. Two branches and even four branches wouldn't work because of uneven balances in power.