Question

Why does the author most likely include this detail?

It is a part of the exposition that introduces Sol-leks’s characteristics.
It is a part of the exposition that shows Buck’s dislike of Sol-leks.
It is a part of the rising action that describes the sled dogs’ daily routine.
It is a part of the rising action that illustrates Buck’s brute strength.

Answer 1

It’s part of the exposition introducing Sol-leks’s characteristics.

Reason: details about Sol-leks serve to introduce his personality and traits early on, rather than advancing the plot (rising action) or focusing on Buck’s strength or dislike.