<span>to show that slavery is a terrible practice that has brought misery to too many people
It's clear that he thinks far too many people have been made miserable by slavery when he says "</span><span>that so great a part of it", meaning that so many people of the world have been afflicted by slavery. It's also clear that he thinks it is a terrible practice, as he uses the phrases "bound in chains of darkness and in chains of misery". </span>
1 1/3 + 2 2/3 = 4
1 + 2= 3
1/3 + 2/3 = 1
1 + 3 = 4
The answer is Dante Alighieri, and it was written in 1320, and consists of three parts: Hell, Purgatory, and Heaven.
D is incorrect because it is a run-on sentence.