The answer is: E. It became a military superpower in the world but lacked a strong economy.
During the 20th century, United states more than 20% of its GDP to be allocated into millitary spending, which make us able to become a millitary superpower and contribute greatly to the victories during the world war I.
There is a downside to this. Large allocation to millitary budget means that there would be less that can be allocated to build things such as infrastructures, loans, government sponsored jobs, etc. Which is why the economy of united states at that era was a little bit lacking.
Just because slavery ended did not mean segregation, prejudice, and hate did. Many people did not like that they were granted these rights and segregated them, based on the "separate but equal" principle. The South is famous for its Jim Crow laws that segregated black Americans, but segregation existed everywhere. Groups such as the kkk formed, etc.
It not in effect because it made the slaves seem less than people and also because if south wants a vote to pass they could force the slaves to agree with them.
The answer is b.the United States was recognized as a world power
