What were Thomas Jefferson's important contributions to America?

Thomas made an impact in American history due to his contributions he made, some examples of these contributions would be: He made the Declaration of Independence. This was one of his well-known contributions. He was also known to have been in charge and related to the Louisiana Purchase which was from France. He also taught people of his religion which I believe he was a Christian. Jefferson was also the foundation of the University of Virginia due to being a big part of America. I hope this helped you! :3 have a terrific day! Also happy early halloween

-w-

becasue in the south they disallowed slavery but in the north slavery was illegial this boilled into because mexico wanted slavery

i believe the answer is d.