I believe the answer is: c understanding constancy and change throughout the lifespan.
In social settings, developmental science research is being done by observing the change that the subjects experience if being put at a certain time of environment over time. Example of its research would be finding out whether there is a correlation between parents income with performance throughout school years.
Because the English wanted to take their land. Technically, The Native Americans believed that land cannot be sold, and saw it as a sacred thing.
Andrew Jackson (1767-1845), seventh president of the United States, symbolized the democratic advances of his time. His actions strengthened the power of the presidential office in American government. The second crowd that showed up at the mansion was made up of Jackson supporters who were dressed in their best clothes.
