Answer:
while mesoamerican civilization knew of the wheel and basic metallurgy, the technologies became important. the earliest complex civilization was Olmec culture, which inhabited the gulf of mexico. (known for Olmec, Maya, Zapotec, Teotihuacan, Mixtec, and Mexica (or Aztec)
I think that the only right option is c. Workers had easier jobs and shorter hours. It caused lower quality of production
1 a 2 a 3 c 4 b but im not sure
the thirteenth amendment outlawed slavery from the united states.