Answer:
The militia of the United States, as defined by the U.S. Congress, has changed over time. ... Today, as defined by the Militia Act of 1903, the term "militia" is used to describe two classes within the United States: Organized militia – consisting of state militia forces; notably, the National Guard and Naval Militia.
C. Native American communities occupied vast acres of desirable land.
Central Asian armies under the Mongols repeatedly invaded and conquered parts of the Muslim world.
So...D.
Well, this is very easy, first up; what's a fugitive?
A fugitive is a person that has escaped a place/or is in hiding;to avoid arrest/persecution.
So traveling by wagons,railroads,and walking makes sense. Except for one, slave ships, that makes no sense at all. Why would fugitive slaves travel on "slave ships?"
The frontier was opening to those brave enough to explore it and whether to settle there or not. Most decided on settling there a have a new beginning despite the hardships. It was a time when canals were beginning to make inroads into the interior. Those who helped build them chose to stay. Soon the railroads began to further open the forests west of the Alleghenies. The population began moving west as immigrants from Ireland and Germany fled the confines of the eastern cities and their increasing populations.
