They enforce the law and defend the interest of the united states.
Hi i think the answer will be D
Answer:
Expansion, Immigration, and Migration
Explanation:
The continual flow of the free market is driven by self interest and competition.
Answer:
Granger movement was the need for unified action against the monopolistic railroads and grain elevators (often owned by the railroads) that charged exorbitant rates for handling and transporting farmers’ crops and other agricultural products. The movement picked up adherents as it became increasingly political after 1870.