Choose the answer that best matches the word in italics when Landon speaks of Buck metamorphosis, he means that Buck

is undergoing a transformation or change. He is becoming a different version of himself or adapting to a new situation or environment.

undergoes a significant transformation or change. This typically refers to a dramatic change in Buck's behavior, physical appearance, or mindset throughout the story. To determine the best matching answer, it is important to read the context in which Landon speaks of Buck metamorphosis and the specific details given about Buck's transformation.

undergoes a transformation or change.