This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Growth and development, Subject name: Pediatrics
Which carpal bone appears at 2 months of age? 
Select and explain. 
A. Capitate, B. Pisiform, C. Lunate, D. Trapezoid
A: Capitate
Answer: A: Capitate 
Explanation: Ref.nelson textbook of pediatrics 20th edition page 68