After the death of Curly in The Call of the Wild, Buck concludes that no fair play exists in his world and that he will never go down in a fight. The theme illustrated here is apparently derived from London's interpretation of

ANietzsche's ideas.
Binstincts as ancient memories.
Cthe theory of evolution.
D"might makes right."

Verified Answer :

The correct answer for this question is this one: "c. the theory of evolution." After the death of Curly in The Call of the Wild, Buck concludes that no fair play exists in his world and that he will never go down in a fight. The theme illustrated here is apparently derived from London's interpretation of the theory of evolution.