This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Clostridium, Subject name: Microbiology
Naegler's reaction is shown by? 
Select and explain. 
A. Clostradium tetani, B. Clostridium welchii, C. Mycobacterium tuberculosis, D. Mycobacterium leprae
B: Clostridium welchii
Answer: B: Clostridium welchii 
Explanation: Ans. (b) Clostridium welchiiRef: Ananthnarayan 7/e / 238