Answer:
C - the expansion of slavery in the South
Explanation:
With the invention of the cotton gin, more workers (slaves) were needed to work the fields to increase the amount made from the cash crop.
They were first used as evidence in 1892.
Well, there was a need for more people working during the Industrial Revolution and it later would led to women working while wars went on and even The Women’s Suffrage
“First stage” will be the answer you are looking for hope this helps
