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: Unknown
A man had Egg omelet 1-4 hours back and developed diarrhea, vomiting and abdominal cramps. Most likely cause of poisoning. 
Select and explain. 
A. Staphylocoocus, B. Salmonella, C. Bacillus cereus, D. Clostridium
A: Staphylocoocus
Answer: A: Staphylocoocus 
Explanation: None