the answer is: d.was primarily concerned with westward expansion and internal problems.
At that time, the plan for westward expansion created internal debate among different groups in united states since it require large amount of investments and could bankrupt the whole country if it failed.
Because of this huge risks, united states' attention was taken mostly by this issue, to the point where we could not seriously be involved in overseas expansion.
<span>To get ready for a full and complete account of the circumstances surrounding the September 11, 2001 terrorist attacks.</span>
No.
The U.S.A got revenge on them.
Westward expansion was a natural progression for the nation because the most powerful entities came from the East (England). It is only natural that they spread out and conquer/capture/kill/annihilate those in their way (the true Americans/Native Americans). In doing so they conquered a whole land and taught them their ways while spreading West.
