Need help due on apex history

The early history of Apex stems from a railroad station that was chartered in 1854, although the first train did not pass through town until 1869. The first settlers came to the area in the 1860's, and the town was incorporated in 1873.

Explanation:

Historical Causation

Explanation:

Now at first look it may seem like cause and effect, but, looking at what historical causation means ( ¨Historical causation tries to find an explanation for changes and is often also used to predict events, by forecasting the effects of current events on future situations. Ideas about historical causation have changed dramatically over time, but the subject has always been at the center of how we understand our world.¨) we can see because of the immigration, this caused the Natives to get sick, but also changed lives and landscapes ( via trade which made more sick animals ans people come over) over time.

the answer wold be b) travel among nations should be regulated by an international organization

c. troops marched forward in close formation against newer, more accurate weapons