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
Preformed toxin is impoant in food poisoning due to all EXCEPT - 
Select and explain. 
A. Staph aureus, B. Clostridium botulism, C. ETEC, D. B.cereus
C: ETEC
Answer: C: ETEC 
Explanation: Ans. is 'c' i.e., ETEC (Enterotoxigenic E.coli) Preformed toxin causes food poisoning .Staph aureus . Bacillus cereus . Clostridium botulism. . Clostridium perfringens