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: Anatomy
[{'content': 'Fascia around nerve bundle of brachial plexus is derived from : \nSelect and explain. \nA. Pectoral fascia, B. Clavipectoral fascia, C. Prevertebral fascia, D. Deep cervical fascia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Axillary sheath is derived from pre - vertebral fascia.', 'role': 'assistant'}]