I do not know the answer, but if I were to guess, that it would be the one about plantations.
Plantations were hotspots of manual labor, specifically slaves. And when slaves were outlawed the plantation owners lose there main source of “profit” (aka the need to not pay workers for manual labor and instead use that money to get more laborers) it seems like the logical answer to me.
Also using process of elimination we know that the war could have spilt the country in two. So the union was indeed saved.
opinion
you can't prove that pigs don't make good pets, its totally subjective
The union attempted to blockade other southern states. By doing this the union thought they could cause the economy of the confederate states to collapse
Answer:
Say you had Hydrochloric Acid. This is a very strong acid that can burn you. If you didn't know the pH that said it was an acid (1-7), then it could really hurt you.
Or if you had 3 cups either one of them had bleach, water, and a strong acid. You shouldn't pick one, becuase you could die. Bleach is a base, it has a pH of about 12. Water is neutral and has a pH of 7. But the strong acid could have a pH of 3.
