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
Cheeser's lung is caused by 
Select and explain. 
A. A. clavatus, B. A. niger, C. Penicillium marneffei, D. Penicillium caseioculum
D: Penicillium caseioculum
Answer: D: Penicillium caseioculum 
Explanation: It is Extrinsic allergic alveolitis caused by inhalation of spores of penicillium casei from moldy cheese.