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: Surgery
[{'content': 'First epiphysis to appear around the elbow region is: March 2005 \nSelect and explain. \nA. Head of radius, B. Capitulum, C. Trochlea, D. Medial condyle', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B: Capitulum The most commonly used mnemonic for the sequence of ossification around the elbow is CRITOE or CRITOL (mean ossification times) C- Capitulum (2 years) R- Radial head (4 years) I- Internal (medial) epicondyle (6 years) T- Trochlea (8 years) 0- Olecranon (9 years) E- External or Lateral epicondyle (12 years)', 'role': 'assistant'}]