The answer would MOST LIKELY be C, since lain is the verb.
Objectivism is a philosophy that stresses the external rather than the internal. They believe that most things exist outside of what people know or feel and that the truth especially exists beyond what people know.
The phrase "clear sight and clean soul" supports this belief because in order to see things that are outside of yourself you need to have clear sight, the ability to see things beyond what you already know and believe. You also need to have a clean soul in order to look at things with a fresh perspective.
The answer here is D.
It uses a similie to make a comparison.
5 is antithesis
9 is allegory
11 is maxim
17 is simile
19 is simile
24 is metonymy
I hope this helps you.