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': "Triad of perioral pigmentation, bowel cancer and breast cancer is seen in: \nSelect and explain. \nA. Reiter's disease., B. Peutz Jegher's syndrome., C. Gardener's syndrome., D. Scleroderma.", 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]