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
"Rat Bite" fever is caused by: 
Select and explain. 
A. Bacillus anthracis, B. Leptospira, C. Spirillum minus, D. Borellia
C: Spirillum minus
Answer: C: Spirillum minus 
Explanation: Spirillum minus