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 child is able to dress herself, knows her gender, feeds without spilling. What is her age \nSelect and explain. \nA. 2 years, B. 3 years, C. 4 years, D. 5 years', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. b. 3 years Development Milestones in a child of 3 years: Motor: Goes up stairs with one foot on each step, riding tricycle. Fine motor: Makes tower of ten cubes, draw a circle. Social: Dry by night, knows gender. Linguistic: Know age, gender and name', 'role': 'assistant'}]