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
Non motile clostridia is - 
Select and explain. 
A. Cl. perfringens, B. Cl. novyi, C. Cl. botulism, D. Cl. difficle
A: Cl. perfringens
Answer: A: Cl. perfringens 
Explanation: Ans. is 'a' i.e., Clostridium perfringens