B. Desalination.
Saudi Arabia is the largest producer and (I think) consumer of desalinated water in the World. This allows coastal countries without freshwater aquifers to turn the ocean into safe drinking water that will sustain growing populations.
The general feeling of the slaves toward their situation was "hopelessness".
The Interesting Narrative of the Life of Olaudah Equiano, Or Gustavus Vassa, The African, first distributed in 1789 in London, is the collection of memoirs of Olaudah Equiano. The book portrays Equiano's time spent in subjugation, and records his endeavors at turning into a free man and his inevitable achievement in picking up success in his own freedom and in business from there on.
The Nobles ended up overthrowing the Greek King(s) and started city-states.
<span><span>Republican candidate Abraham Lincoln. that's your answer</span></span>