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: Psychiatry
[{'content': 'Nowadays Down syndrome is referred to as. \nSelect and explain. \nA. Submental disorder, B. Oligophrenia, C. Madness, D. Mentally unstable', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer: A - Submental disorder Majority of children with Down syndrome function in mild to moderate range of mental retardation.Down syndrome / Trisomy 21 -A genetic disorder caused by the presence of all or pa of the third copy of chromosome 21.Typically associated with physical growth delays, characteristic facial features and mild to moderate intellectual disability.', 'role': 'assistant'}]