You are answering a USMLE-style medical question. Question: While on a teaching sabbatical in Uruguay, a pathologist examined the excised liver of an 18-year-old otherwise healthy female who passed away due to massive hepatic necrosis 5 days after she underwent general anesthesia to repair a fractured femur. Which of the following is a general anesthetic most likely responsible for her death? Options: A) Lidocaine B) Midazolam C) Halothane D) Desflurane Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.