Supreme Court should be the right answer
The Ice Age had a great effect on where people settled in americans since they were only able to reach North America through the Bering Land Bridge, which was only frozen due to the extremely low temperatures. Without this they would have had no way to leave Siberia.
The happenings at the second half of the 20th century paved way for a new conservatism movement. The American people at that time thought that "liberalism had gone too far" which could mainly be attributed to the rise of the civil rights movement and the course of the Cold War.
Dexter was motivated by his strong desire to have the best of everything. He has grown up around people with higher status than his family who were merchants so he decided he want to surpass everyone in success, and opts to go to an expensive East Coast college because of its prestige, instead of a local school to study business.