Answer:
Love
Step-by-step explanation:
The Call of the Wild is a novel written by Jack London. The main character is a dog named Buck, who gets stolen and sold into service as a sled dog in Alaska. He becomes wild in the harsh environment, where he is forced to fight to survive.
In Chapter 6, called For the Love of a Man, Buck learns to love John Thornton, the man who saved his life. Thornton treats the dogs as if they were his own children, and Buck responds to that well, even protecting Thornton by killing the man who assaulted him.