This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb, Subject name: Anatomy
[{'content': 'Neurovascular bundle in axilla is surrounded by sheath derived from \nSelect and explain. \nA. Preveebral fascia, B. Pretracheal fascia, C. Clavipectoral fascia, D. Axillary sheath', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The neurovascular bundle in axilla is covered by axillary sheath which is derived from preveebral fascia. Reference : BD chaurasia, 7th edition, page no 50-Fig.4.5 & page no 60-Facts to remember', 'role': 'assistant'}]