This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: Orthopaedics
[{'content': "Test used for Posterior dislocation of glenohumeral joint \nSelect and explain. \nA. Jerk test, B. Fulcrum test, C. Cranks test, D. McMurray's test", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Test for posterior glenohumeral instability is jerk testMaheswari 5th edition PG 95', 'role': 'assistant'}]