Answer:
D. gained new territories.
Explanation:
When the United States won the Spanish-American War, they annexed new territories. Adding these new territories helped U.S. influence grow in the world.
They thought that not taking violent action could prevent a war
D. The right for people to decide for themselves (that's the "popular" part) without federal intervention.
For examples of how this didn't work as planned, see "Bleeding Kansas," Kansas-Nebraska Act, and much of the decade or so leading up to the start of the Civil War...
The term that is used for the division of political authority among branches of government is called the A) separation of powers. The separation of powers seeks to create checks and balances amongst the branches of government to prevent tyrannical government from occurring.