A, Slaves provided much of the labor on plantations that grew cash crops would be the answer I would go with. Most slaves worked in crop fields, and iron working didn't become prominent in the US until the industrial revolution about 10 years after the Civil War. I cannot say I'm 100% certain, but the others to me don't seem to make sense when looking at the situation.
Robert Hooke as an insult because he was short
Italy was part of many trading routes and the Medici family were wealthy textile merchants. They invested in banking to increase profit they gained from trade, eventually taking power and prestige away f.rom nobility
The electoral college is a body of representatives who are responsible for selecting the president. The president runs the executive branch of government.
