Hey there!
Your question states: A highly
susceptible population is . . .
The word
indicates when something is most likely to happen. It also means when things have a chance of happening or it's liable to be influenced.
In this question above, we need to find something that would happen based on what you have.
A highly susceptible population is people who are more likely to become sick from food-borne illness.
People who have to food-borne illness, will most likely get sick.
Your correct answer would be
✓
Hope this helps.
~Jurgen