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
Labile toxin of E.coli can be detected by the following methods of incubation except - 
Select and explain. 
A. Into infant rabbit bowel, B. Into adult rabbit skin, C. Intra gastrically into infant Mouse, D. Into Tissue Culture of Chinese Hamster ovary cells
C: Intra gastrically into infant Mouse
Answer: C: Intra gastrically into infant Mouse 
Explanation: None