This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Shoulder and arm injuries, Subject name: Orthopaedics
[{'content': 'A 20-years old male presents with anterior shoulder dislocation. This injury is usually caused as a combination of which of the following? \nSelect and explain. \nA. Abduction & external rotation, B. Adduction & external rotation, C. Abduction & internal rotation, D. Adduction & internal rotation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most common mechanism of injury for anterior dislocation is fall on outstretched hand or throwing with abduction, external rotation and extension at shoulder Refer Maheshwari 9th ed pg 89', 'role': 'assistant'}]