It's a simile. None of the three stylistic figures that have been left aside compare things.
I would say the best would be looking at content and the expected length and/or organization
Answer:
"the supposed faculty of perceiving things or events in the future or beyond normal sensory contact."
Answer:
-It's natural that some people are slaves
-Slaves are inferior beings
-Slavery is good for slaves
-Abolishing slavery would threaten the structure of society
