Which was an advantage held by the south over the north at the start of the civil war?
a.
it's slave population was willing to fight to preserve the plantation system.
b.
it's soldiers and generals believed they were protecting their homes and way of life.
c.
it had an industrial economy with limitless immigrant labor to produce weapons.
d.
it had a far more extensive network of railroads and telegraph lines.

An advantage held by the South over the North at the start of the Civil War was B. it's soldier and generals believed they were protecting their homes and way of life. Since the South seceded from the North, all it had to do was exist to continue as an independent nation. It was up to the North to invade and restore order and thus the South was fighting a defensive war (much easier than the opposite - an offensive war).