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: Microbiology
The hemoatoxylin and eosin staining of a lung section during autopsy of a patient suffering from AIDS shows desquamation of type 1 pneumocytes with prominent intracuclear basophilic inclusion bodies surrounded by a clear halo. The CD4 count was less than 100/mm3 before detnis- ' most likely diagnosis causing these featuresis: 
Select and explain. 
A. Acute respiratory distress syndrome, B. Pneumocystic jiroveci pneumoni, C. CMV pneumonia, D. Mycobacterium avium-intracellulare pneumonia
C: CMV pneumonia
Answer: C: CMV pneumonia 
Explanation: Ans. c. CMV pneumonia