This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Radiology
X ray features of sarcoidosis stage 2 as per scadding system is? 
Select and explain. 
A. Peripheral hilar lymphadenopathy, B. Diffuse fibrosis, C. Pleural effusion, D. Mediastinal lymphadenopathy
A: Peripheral hilar lymphadenopathy
Answer: A: Peripheral hilar lymphadenopathy 
Explanation: Ref : David Sutton 9th ed