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': 'Level II axillary lymph node: \nSelect and explain. \nA. Lateral to pectoralis major and minor, B. Behind pectoralis minor, C. Medial to pectoralis minor, D. Superomedial to pectoralis major', 'role': 'user'}, {'content': "Answer: B \nExplanation: Level II axillary lymph node is located behind pectoralis minor. Axillary LN Levels in relation with Pectoralis minor Level Relation with Pectoralis minor Axillary LNs Included I Below or lateral Anterior, posterior, lateral II Posterior (behind) Central, Interpectoral (Rotter's nodes) III Medial or above Apical", 'role': 'assistant'}]