More and more people moved westward to claim lands that were once inhabited by Native Americans. This was encouraged by the government. This also led to several conflicts with Indians that would later lead to a war between the Indians and U.S. army. In the end, the west was completely settled completing the U.S. expansion to that area.
Answer:
<h2>D. Negative attention bias</h2>
Explanation:
The way a persons perception is affected by various factor in their attention is called attention bias.
It is a person's failure to consider alternative possibilities when occupied with existing thoughts. As it happens in smokers, they have attention bias for the cues and warning about smoking around them as their brain alters their reward sensitivity.
Similarly Rachel is also biased and only focused on the negative critique instead of positive comments so she is engaged in negative attention bias.
What has been changed by humans or influenced.
