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': 'Which of the following can determine malignant conversion of nevi better? \nSelect and explain. \nA. Size, B. Colour, C. Site, D. Number', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Number of nevi is the better indicator of malignant conversion. More the number of nevi, more the chances of malignancy.', 'role': 'assistant'}]