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
Drumstick appearence is seen in : 
Select and explain. 
A. Cl. tetani, B. Cl. tetanomorphum, C. Cl. sphenoids, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: None