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
Which of the following cannot be done by 3-year-old child 
Select and explain. 
A. Draw a triangle, B. Draw a circle, C. Go up and down stairs, D. Arrange tower of 9 cubes
A: Draw a triangle
Answer: A: Draw a triangle 
Explanation: Draw a Triangle by 5 years of age Ref.nelson 20th edition tab.11.1