This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skeletal System, Subject name: Radiology
[{'content': 'In normal X-ray of shoulder which is superior most structure - \nSelect and explain. \nA. Greater tubercle, B. Surgical neck of humerus, C. Coracoid process, D. Head of humerus', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Coracoid processo From superior to inferior (important structure on X-ray sholder) Clavicle : Acromian : Coracoid : Superior margin of humeral head : greater tuberc le : anatomical neck : surgical neck.", 'role': 'assistant'}]