Question

which of the following bacteria are responsible for causing the greatest number of foodborne illnesses? salmonella e. coli norovirus

Explanation:

First, Norovirus is a virus, not a bacterium, so it can be eliminated. Among Salmonella and E. coli, Salmonella is actually responsible for a large number of foodborne illnesses, but in the given options with the selected E. coli being incorrect, the correct answer should be Salmonella? Wait, no, let's re - check. Wait, the question is about bacteria. Norovirus is a virus, so out. Now, between Salmonella and E. coli, Salmonella is one of the leading causes of foodborne illness in terms of the number of cases. But in the original selection, E. coli was selected incorrectly. Wait, maybe there's a mistake in the original selection. Let's correct: The correct bacterium that causes a large number of foodborne illnesses among the options (excluding Norovirus as it's a virus) is Salmonella. But wait, maybe I made a mistake. Wait, actually, according to food safety data, Salmonella is a major cause of foodborne illness. So the correct option is Salmonella. But in the given options, the choices are Salmonella, E. coli, Norovirus. So the correct answer is Salmonella (A. Salmonella), because Norovirus is a virus, not a bacterium, and Salmonella is a bacterium that causes a significant number of foodborne illnesses.

Answer:

A. Salmonella