The correct answer here is the last option. This best describes the idea, belief and the philosophy of the Social Contract. The Social Contract is a philosophy that states that the purpose of the government is to ensure and protect the rights of its citizens. It exist to serve the people and it is created of the people. Therefore it derives its power from the consent given by the people themselves.
The primary way in which the government encouraged settlement in the west was through the Homestead Act, which gave people free land--while the railroads allowed them to travel there safely.
Answer:
militarism,alliances, imperialism and nationalism
