Eli Whitney was the one with the cotton
James Watt was the one with the coal and water
And Jethro Tull Was the reduced number of workers to plant crops.
A concept of federalism where local, state, and national governments interact cooperatively and collectively to solve common problems separately, but more or less equally (dual federalism).
Hope this helps! :)
There are many important contributions of ancient Rome to modern western civilization, but perhaps the best option from this list is "A. <span>network of long-distance paved roads"</span>