This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Microbiology
A 12 year old boy presents with vomiting within 3 hours of consumption of food at a pay. What is the likely causative organism responsible for the symptoms ? 
Select and explain. 
A. Staphylococcus aureus, B. Salmonella, C. Clostridium botulinum, D. Clostridium perfringens
A: Staphylococcus aureus
Answer: A: Staphylococcus aureus 
Explanation: Incubation period of staphylococcal food poisoning is 1-6 hours. As per question, consumption of food is within 6 hrs (3hrs). Food Poisoning Organism Incubation period Staphylococcal 1-6 hours Salmonella 12-24 hours Botulism 12-36 hours Clostridium perfringens 6-24 hours Bacillus cereus 1-6 hours E.coli 8-72 hours