This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Trauma, Subject name: Surgery
[{'content': 'Attitude in posterior dislocation of hip \nSelect and explain. \nA. Flexion, abduction and internal rotation, B. Flexion, adduction and internal rotation, C. Flexion, abduction and external rotation, D. Flexion, adduction and external rotation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref: Textbook of ohopaedics, Maheshwari and Mhaskar, 6th edition Pgno:130', 'role': 'assistant'}]