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': 'All of the following muscles undergo paralysis after injury to C5 & C6 nerves except? \nSelect and explain. \nA. Biceps, B. Corachobrachialis, C. Brachialis, D. Brachioradialis', 'role': 'user'}, {'content': "Answer: B \nExplanation: Muscles paralysed in C5, C6 injury (Erb's palsy)1. Complete paralysis: Biceps, deltoid, brachialis, brachioradialis2. Paial: Supraspinatus, Infraspinatus, supinator", 'role': 'assistant'}]