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
Water lilly sign is seen in chest X-ray of : 
Select and explain. 
A. Pulmonary hypoplasia, B. Echinococcus, C. Pneumonia, D. Sarcoidosis
D: Sarcoidosis
Answer: D: Sarcoidosis 
Explanation: D i.e. Bronchogenic carcinoma