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
Egg shell calcification in hilar lymph nodes is seen ina) Sarcoidosisb) Histoplasmosisc) Tuberculosisd) Carcinoma lunge) Silicosis 
Select and explain. 
A. bcde, B. abcd, C. abce, D. abde
C: abce
Answer: C: abce 
Explanation: None