This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Paediatrics, Subject name: Pediatrics
[{'content': "In which Tanner's stage of pubey in females, areola and papilla form a secondary mound? \nSelect and explain. \nA. Stage 1, B. Stage 2, C. Stage 3, D. Stage 4", 'role': 'user'}, {'content': "Answer: D \nExplanation: Tanner's Staging In Females 1 Prepubeal no pubic hair 2 Sparse growth of minimally pigmented hair, mainly on the labia 3 Considerably darker and coarser hair spreading over the mons pubis 4 Thick adult-type hair that does not yet spread to the medial surface of the thighs 5 Aduls-type in distributed on classical inverse triangle Stage I: prepubeal Stage II: breast bud with elevation of breast and papilla; enlargement of areola Stage III: fuher enlargement of breast and areola; no separation of contour Stage IV: areola and papilla form secondary mound above level of breast Stage V: mature stage; projection of papilla only, related to recession of areola", 'role': 'assistant'}]