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: Radiology
In normal X–ray of shoulder which is'superior most structure – 
Select and explain. 
A. Greater tubercle, B. Surgical neck of humerus, C. Coracoid process, D. Head of humerus
C: Coracoid process
Answer: C: Coracoid process 
Explanation: From superior to inferior (important structure on X-ray sholder) :- Clavicle : Acromian : Coracoid : Superior margin of humeral head : greater tubercle : anatomical neck : surgical neck.