its letter d :) hope this helps
Answer:
They Got New Mayors And Council Managers
Answer:
North fought the south against slavery.
Explanation:
South wanted to keep slavery while the North wanted to free slaves from the south.
Answer:
The expansion of the railroads in the late 1800s was instrumental in helping the US economy boom. It did this in two ways. First, the railroads created a tremendous amount of demand for goods and labor on their own. As the railroads were being built, they needed huge numbers of people to build them.