What is the central idea of passage 1? i really need !

Jack London wrote “The Call of the Wild” as a short adventure novel. He published it in 1903. The story is set in Yukon, Canada, during the 1890s when strong sled dogs were in high demand, this is really important to mention because the central character of the novel, Buck, the dog, was stolen from its owners and sold as a sled dog. Buck becomes gradually savage in the hard environment, where he is forced to fight to survive and dominate other dogs. By the end, he sheds the veneer of civilization, and relies on primitive instinct and arises as a leader in the wild.

Perhaps the strongest main idea of the passage is:

that sometimes pride is the only thing that can push you to survive in harsh environments, sometimes the only manner to thrive and progress in difficult situations is reversing to feral instincts and letting the wild animal inside of you to take control and fight your way to the top.

innocence can be defined as the lack of sin, relating it with the lack of guilt, also it can be a synonime of naivety. most people agree that sins are made out of experiences, intentionally or not, as well as you stop being naive once certain things happen to you throughout your life. so, with this explained, the chosen answers are:

when the boy saw the effects of war, he no longer viewed life as innocent.

the loss of innocence is a result of gaining experience and making mistakes.

one way to define innocence is as a lack of worldly experience or sophistication.

sorry, i just really need points. and to this question, maybe i know the answer. but i have no time now. d