This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Which of the following cannot be done by 3-year-old child \nSelect and explain. \nA. Draw a triangle, B. Draw a circle, C. Go up and down stairs, D. Arrange tower of 9 cubes', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Draw a Triangle by 5 years of age Ref.nelson 20th edition tab.11.1', 'role': 'assistant'}]