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: Social & Preventive Medicine
Which one of the following diseases has the shortest incubation period - 
Select and explain. 
A. Salmonella food poisoning, B. Staphylococcus food poisoning, C. Cholera, D. Diphtheria
B: Staphylococcus food poisoning
Answer: B: Staphylococcus food poisoning 
Explanation: None