Which of the following was an advantage of the north during the civil war?
a. strong military leadership
b. fighting on home territory
c. a strong industrial economy
d. passion for its way of life

C: A strong industrial economy

The North had most of the factories during the war as many of their cities were very industrialized. The South only had plantations and wasn't really suited for mass war production.

The South and the North were fighting on home soil, and both also had strong military leadership. However only the South was fighting for its passion of life, while the North was fighting for a reunification of the states.
(Disproves other choices)

Its either b or c   i'm leaning towards b though i've heard of them during that time period