Final answer:
In Chapter 3, Part 1 of The Call of the Wild, Buck's personality changes as he becomes bolder and more confident on the trail.
Step-by-step explanation:
In The Call of the Wild, Chapter 3, Part 1, Buck's personality undergoes a significant change. He grows bolder and more confident as he gains experience on the trail. As he adapts to the harsh environment and learns the ways of survival, Buck becomes more assertive and assertive in asserting himself among the pack. This growth in confidence is evident in his interactions with Spitz, as Buck becomes more willing to stand up for himself against Spitz's attacks.
Learn more about personality change in The Call of the Wild