This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
Which of the following causes necrotising enterocolitis 
Select and explain. 
A. Clostridium botulinum, B. Clostridium tetani, C. Clostridium perfingens A, D. Clostridium perfingens C
D: Clostridium perfingens C
Answer: D: Clostridium perfingens C 
Explanation: Necrotizing enterocolitis is severe and often fatal enteritis. It is caused by C.perfringens type C strains with heat resistant spores that germinate in the intestine producing beta toxin, causing mucosal necrosis. Immunization with the type C toxoid has been shown to protect against this condition. Ref: Textbook of microbiology; Ananthanarayan and paniker's; 10th Edition; Pg: 260