B) Collusion
Collusion is the act of two or more parties getting together to conspire or plan something secretly.
The man represents chaos because he brings disorder into his surrounding. Nature is wonderful and more powerful than a man can ever become - it is perfect the way it is, and man is there to disturb the balance that nature has created over a long period of time. This story was written by Jack London, who's a naturalist, so it is normal that he would appreciate nature over everything else.
This is where the chorus joins in and sings the mood of the characters and heightens the emotions in the play.
Comparative: Angrier
Superlative: Angriest
Hope this helps.