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
Stalicite growth is by: 
Select and explain. 
A. Yersenia, B. Mycoplasma, C. Diptheria, D. Clostridia
A: Yersenia
Answer: A: Yersenia 
Explanation: Yersenia