This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
[{'content': 'Most common cause of death in malignant melanoma is due to \nSelect and explain. \nA. Sepsis, B. Adverse effects of chemotherapy, C. Metastasis to lungs, D. CNS metastasis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: CNS metastasis is the most common cause of death in malignant melanoma.', 'role': 'assistant'}]