What lesson does the dog learn about loyalty?

The lesson that the dog learns about loyalty centers on the idea that loyalty has no limits. Throughout the narrative, the dog, Enzo, demonstrates unwavering loyalty to his owner, Denny, despite the myriad challenges and hardships they face. Enzo's devotion remains constant whether times are good or bad, showcasing a profound understanding that true loyalty is not contingent on circumstances or the behavior of others.

This theme resonates with readers as it illustrates the deep bond between a pet and its owner, emphasizing that loyalty can be an intrinsic value that defines relationships. Enzo's commitment is not based on Denny's decisions or the difficulties they encounter; rather, it is a steadfast promise to stand by him, reflecting an ideal of unconditional love and support.

In contrast, other answer choices reflect a conditional or limited understanding of loyalty, which does not align with Enzo's experiences or behaviors. The portrayal of loyalty in the story highlights its importance as a fundamental aspect of companionship, making the idea that loyalty has no limits the most fitting lesson learned.