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': 'Concrete thinking stage of cognitive development? \nSelect and explain. \nA. 0-2 years, B. 2-5 years, C. 5-10 years, D. 10-15 years', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., 5-10 years Cognitive development stages Children are not little adults. Until they reach the age of 15 or so they are not capable of reasoning as an adult. Jean Piget described four major stages of intellectual (cognitive) development which are related to major development in brain growth. Sensori-motor stage (bih 2 years) Pre-operational stage (2-7 years) Concrete operational stage (7-11 years) Formal operational stage (>11 years)", 'role': 'assistant'}]