Theresa can revise her conclusion to make it stronger and more specific by choosing B. Buck survives because of his ability to apply the laws of club and fang to his new experiences in Alaska.
This option emphasizes Buck's adaptability and growth throughout the story, highlighting the key themes of survival and transformation that are central to his character arc. It reflects on how Buck learns from his experiences and uses that knowledge to navigate the challenges he faces in his new environment, making the conclusion more insightful.