Answer:
this sentence is denotation
The detail that best reveals that Mr. Rainsford opposes Zaroff's idea of the ideal prey is Mr. Rainsford's response near the end of the passage when he states that he is a hunter, not a murderer. This statement shows the reader that Mr. Rainsford believes that Zaroff hunting humans as prey makes him a murderer.
Wine Metaphor, The Town Metaphor, Helen Loomis Metaphor, etc.....
The best option seems to be the second one, letter B) This concept is mentioned throughout the book.
The book The Call of the Wild, by Jack London, has as its theme the concept of "survival of the fittest". Survival of the fittest is an expression connected to Charles Darwin's theory of evolution. Organisms which are able to adapt to the environment survive. Those which are not end up extinct.
That is precisely what happens in the story by London. The main character is a dog, Buck. Buck is stolen from a family with whom he lived a comfortable life. He has to adapt to a whole new environment and conditions as a sled-dog. He turns out to be so adaptable that he becomes the leader of a pack of wolves by the end of the story.
