When the civil war broke out in the us, most countries in europe and latin a) used slave labor in their factories b)had never relied on slaves c)relied on slaves to plant and pick their crops d) had laws against slavery

brainliest is someone you pick by simply clicking a button. it only shows up if there are two people that answered your question, then you decide who answer more accurately with detail and explanation and you give that person the title "brainliest".

i hope this your understandings.

cur

explanation:

cancer

a widespread disease that killed many people

the split of the christian church

invasion from arab muslims