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
The following is characteristic feature of staphylococcus food poisoning except: 
Select and explain. 
A. Optimum temperature for toxin production is 370C, B. Intradietic toxin are responsible for intestinal symptoms, C. Toxin can be destroyed by boiling for 30 minutes, D. Incubation period is 1-6 hours
C: Toxin can be destroyed by boiling for 30 minutes
Answer: C: Toxin can be destroyed by boiling for 30 minutes 
Explanation: Staphylococcal food poisoning:

Staphylococcal food poisoning is due to heat-stable preformed toxin mostly after consuming milk products.
Toxin is produced optimally at 350C to 370C. 
Mechanism - Acts by stimulating vagus nerve and vomiting centre of brain. No antibiotics are given for Staphylococcal food poisoning.