Answer:
The stout man in a red sweater taught Buck to respect the man holding the club. Thus, the club is not only used to inflict pain but also serves as a symbol of authority. The lesson was driven home to Buck: a man with a club was a lawgiver, a master to be obeyed, though not necessarily conciliated.
Step-by-step explanation:
The Man in the Red Sweater is unnamed person who Buck remembers for the rest of his life because this is the person who teaches Buck the lesson that "a man with a club was a lawgiver, a master to be obeyed.It was part of their survival instinct. Spitz beat him to the rabbit and killed it. Buck did not slow down. ... It was the instinct of the primitive beast that had gotten aroused in Buck during the rabbit chase that carried Buck to the final stages of his fight with Spitz.