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
"Pneumonia Alba" is caused by: 
Select and explain. 
A. Streptococcus, B. Pneumococcus, C. Treponema, D. Staphylococcus
C: Treponema
Answer: C: Treponema 
Explanation: Treponema