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: Orthopaedics
[{'content': "Not a true statement \nSelect and explain. \nA. Erb's palsy involves injury to C6, C7 roots, B. Klumpke's palsy involves injury to C8, T1 roots, C. Brachial plexus injury with horner's syndrome is seen with injury to T1, D. Erb's palsy deformity also known as Policeman hand", 'role': 'user'}, {'content': "Answer: A \nExplanation: Erb's palsy involves C5, C6\xa0nerve roots.", 'role': 'assistant'}]