Which sentence best describes the overall tone of the text? A. The tone is melancholic because the narrator is saying goodbye to an animal that she loves. B. The tone is suspenseful because the narrator is uncertain whether her horse will survive or perish. C. The tone is optimistic because the narrator believes she will be able to ride horses again in the future. D. The tone is detached because the narrator has lots of experience putting animals down as a veterinarian.