What was a positive outcome of the crusades?

How is thomas jefferson related to the war of 18122 a. during his term, he made defense cuts that left americans at a military disadvantage b. as madison’s vice president, he served as a commander in chie c. he convinced congress to declare war though his propaganda efforts d. he authored the treaty ghent which ends the war

What is the main idea of this excerpt? 1.1.3

Who founded the social contract theory of the government