Question

on average, how long after consumption of contaminated food do symptoms of food - borne illness begin?
minutes
hours
between 1 to 3 days

Explanation:

Food - borne illness symptoms typically start hours after consuming contaminated food. Minute - level onset is very rare for most common food - borne pathogens. A 1 - 3 day onset is more characteristic of some parasites or very slow - acting toxins, but the average for common bacteria (e.g., Salmonella, Campylobacter) and many viruses (e.g., Norovirus) is in the hour range.

Answer:

B. Hours