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: Pathology
[{'content': 'In Peutz-Jeghers syndrome, the oral lesions are \nSelect and explain. \nA. Ulcerations of oral mucosa, B. Sebaceous glands of oral mucosa, C. Silver pigmentation of oral mucosa, D. None of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]