This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Child Psychiatry, Subject name: Psychiatry
[{'content': "All of the following statements are true about Rett's syndrome except: \nSelect and explain. \nA. Loss of acquired motor skills between 5 to 48 months, B. Language impairment is a symptom, C. Poorly coordinated gait is commonly seen, D. Is more common in males", 'role': 'user'}, {'content': "Answer: D \nExplanation: Rett's syndrome is more common in females. Rest of the statements are correct Rett's disorder (Rett's syndrome) Almost exclusively seen in Females Normal development till 5 months. Deceleration of head circumference (Microcephaly) * Loss of acquired hand skills and speech (Pincer grasp may be absent) *", 'role': 'assistant'}]