Which of the following quotations most directly relates to the theme of the value of work? "He even went out of his way to bully Buck, striving constantly to start the fight which could end only in the death of one or the other."
"The toil of the traces seemed the supreme expression of their being, and all that they lived for and the only thing in which they took delight."
"They quickened the old life within him, and the old tricks which they had stamped into the heredity of the breed were his tricks."
"Buck's feet were not so compact and hard as the feet of the huskies."