<em>B. Many of them died during the migration.</em>
Explanation:
The Trail of Tears was the walk the Native Americans did after being forced from their land by the United States government.
The U.S. government wanted to expand, but Native Americans were living in the land they wanted to expand into, so decided to move them to present day Oklahoma, where they were not planning on doing anything with quite yet.
The Indian Removal Act was officially passed in 1830, which finally made it so the Natives had to leave or they would be forcefully thrown out. They did not want to leave and some even tried to revolt, but it was no use, as they did not have the resources or man power against the United States government.
Since they did not leave while planned and had to be forced out of their homes, many were not properly prepared. They were forced to walk and be kept in camps along the way. Many ended up dying from diseases, starvation, or because of the weather. This walk is called the Trail of Tears, where <em>thousands </em>of Native Americans died.
Light bulbs were the power source used in factories during the industrialization
