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: Pathology
The alveoli are filled with exudate the air is displaced conveing the lung into a solid organ. This description suggests- 
Select and explain. 
A. Chronic bronchitis, B. Bronchial asthma, C. Bronchiectasis, D. Lobar pneumonia
D: Lobar pneumonia
Answer: D: Lobar pneumonia 
Explanation: Ans. is 'd' i.e., Lobar pneumonia