Many philosophers wrote down their philosophies about the government and . a number of philosophers published books on the subject. they applied the idea of to social and political analysis. thomas hobbes wrote leviathan, a book about social structure and government. he wrote about the , an agreement in which the people exchanged some of their individual freedoms for the government’s protection.

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So the full paragraph would read:  Many philosophers wrote down their philosophies about the government and people's rights.  A number of philosophers published books on the subject. They applied the idea of natural law to social and political analysis. Thomas Hobbes wrote Leviathan, a book about social structure and government. He wrote about the social contract, an agreement in which the people exchanged some of their individual freedoms for the government’s protection.

answer; the period of time known as the middle ages;

nations must cooperate to bring about and maintain world peace.

nations must not wage wars or commit war crimes in a desire to control other nations.

i think i know which options you have but if these aren't options let me know