Southerners had a stronger fighting spirit than Northerners during the Civil War because

a
Northerners did not care about the Union.
b
they were fighting to end slavery.
c
they were fighting for independence.
d
Northerners had a smaller army.

c I'm pretty sure

Explanation:

Its the only one that makes sense

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.