Question

which vulnerable population is at increased risk of food - borne illness?
pregnant women
infants
elderly
those with underlying illness
all of the above

Explanation:

Pregnant women have weakened immune systems due to hormonal changes. Infants have immature immune systems. The elderly may have age - related immune decline. Those with underlying illnesses often have compromised immune function. All these factors make them more susceptible to food - borne illnesses.

Answer:

A. All of the above