This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Surgery
[{'content': 'Superolateral boundary of axillary dissection is: \nSelect and explain. \nA. Clavipectoral fascia, B. Brachial plexus, C. Axillary aery, D. Axillary vein', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Axillary Node Clearance Axillary node clearance is defined as clearing of the axillary contents bounded by: Laterally: Axillary skin Posteriorly: Lattisimus dorsi, Teres major and subscapularis Superiorly: Lower border of axillary vein Anteriorly: Pectoralis muscle Medially: Chest wall', 'role': 'assistant'}]