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
All are true regarding staphylococcal toxin, except: 
Select and explain. 
A. Beta hemolysin shows hot cold phenomenon, B. Mainly endotoxin, C. Enterotoxin causes food poisoning, D. Exfoliative toxin causes Ritter’s syndrome
B: Mainly endotoxin
Answer: B: Mainly endotoxin 
Explanation: Gram positive bacteria will mainly act by producing exotoxins.