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: Pediatrics
[{'content': 'A 14-year-old boy has difficulty expressing himself in writing and makes frequent spelling mistakes, does not follow instruction and cannot wait for his turn while playing a game. He is likely to be suffering from – \nSelect and explain. \nA. Mental retardation, B. Lack of interest in studies, C. Specific learning disability, D. Examination anxiety', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Learning disability (LD) is defined as a disorder in one or more of the basic psychological processes involved in understanding or in using language, spoken or written, which may manifest itself in an imperfect ability to listen, speak, read, write, spell or to do mathematical calculations.\nLearning disability is suspected when there is unexpected underachievement in adequate educational settings.\nThe DSM-IV defines three academic skill specific learning disorders.\n\n\nReading disorder\nMathematic disorder\nDisorder in written expression\n\n\nAnother subtyping is language-based LD commonly known as dyslexia (problem in reading, spelling and written expression) and nonverbal LD (deficits in arthmetic and spacial cognition).\nDyslexia is the most common type of learning disability.\nChildren with dyslexia have a problem in reading, spelling and written expression.\nThe important clues to dyslexia in school-age children include delayed language, trouble rhymic words, mispronunciation, hesitation, word-finding difficulties and poor spellings with the presence of letter reversal. Reading is slow, inaccurate and laboured.\n\n\n\nComing back to question, the child has\n\n\nDifficulty in expressing himself in written (a problem in written expression)\nMakes spelling mistakes (a problem in spelling).\n\n\nBoth these are manifestations of dyslexia, a specific learning disability.', 'role': 'assistant'}]