Answer: A
Reason John C. Calhoun was a Vice President & the rest where leaders in abolitionism
Lever<span>, simple machine consisting of a rigid bar that rotates about a fixed point, called a fulcrum. </span>Levers<span> affect the effort, or force, needed to </span>do<span> a certain amount of work, and are used to lift heavy objects.</span>
So they (the slaves) were treated bad because they weren't considered human beings