Answer:
I would say: A person's capacity for good or evil can change based on their social environment.
Explanation:
After Bilbo kills a spider in Chapter 8, he finally has enough confidence in his own abilities as a leader and hero. The Battle of the Five Armies in Chapter 17 is the climax of the expedition.
This is called Dramatic Irony. The definition of this is in the question.
Go away basically if im not mistakem