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
Subterminal spores are found in- 
Select and explain. 
A. Clostridium sordelli, B. Clostridium sporogenes, C. Clostridium difficile, D. All
D: All
Answer: D: All 
Explanation: Ans. is 'a' i.e., Clostridium sordelli; 'b' i.e., Clostridium sporogenes; 'c' i.e., Clostridium difficile