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: Medicine
Microorganisms found in lung abscess is / are: 
Select and explain. 
A. Amoeba, B. Histoplasma, C. Bacteroides, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: None