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: Gynaecology & Obstetrics
[{'content': 'McCune Albright syndrome is characterised by all except \nSelect and explain. \nA. Cafe au lait skin spots, B. Polyostotic fibrous dysplasia, C. Delayed puberty, D. Mutated α - subunit of G-protein', 'role': 'user'}, {'content': 'Answer: C \nExplanation: McCune Albright syndrome\xa0→ causes precocious puberty.\nMc-cune Albright syndrome :\n\nGS alpha mutation\nPrecocious puberty\nCafe u lait spots\nShort 4th metacarpal\nKukcle knuckle dimple knuckle sign', 'role': 'assistant'}]