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': "Patey's modification of mastectomy is \nSelect and explain. \nA. Total Mastectomy with level 1 nodes, B. Total mastectomy with Level 1 through 3 axillary LN with pectoralis minor resection, C. Total mastectomy with all nodes removed with Retraction of Pectoralis minor, D. Simple mastectomy", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Total mastectomy with Level 1 through 3 axillary LN with pectoralis minor resection(Ref. Operative Surgery Fischer 55)* Patey procedure - Pectoralis muscle is removed from coracoid process* Auchincloss - Pectoralis muscle is retracted* Scanlon - Pectoralis muscle is divided', 'role': 'assistant'}]