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': 'Which of the following cannot be done by a 3 year old child? \nSelect and explain. \nA. Draw a circle, B. Draw a rectangle, C. Telling a story, D. Riding tricycle', 'role': 'user'}, {'content': 'Answer: B \nExplanation: A child can draw a rectangle by the age of 4 years. All other options can be performed by a 3 year old child. Ref: O P Ghai, 7th Edition, Pages 26-29, 6th Edition, Page 44; Nelson, 18th Edition, Page 44.', 'role': 'assistant'}]