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': 'which of the following is true regarding ERBS PALSY ? \nSelect and explain. \nA. Can be a bih injury, B. C5 C6 root involved, C. Deformity is adduction and internal rotation, D. Ulnar nerve is affected', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Can be. A bih injury C5C6 root involved Deformity is abduction and internal rotation of arm Complete paralysis of biceps and Brachioradialis muscle Refer : maheswari 9th ed', 'role': 'assistant'}]