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
40 year old male presented to OPD with fever and breathlessness. His Xray is shown below. The most probable diagnosis is 
Select and explain. 
A. Tuberculosis, B. Pleural effusion, C. Pneumonia, D. Bronchogenic carcinoma
C: Pneumonia
Answer: C: Pneumonia 
Explanation: .