Which group represents a highly susceptible population?

The correct answer highlights the elderly population living in a nursing home as a highly susceptible group. This is due to several factors that increase their vulnerability to foodborne illnesses and other health-related complications.

Elderly individuals often have weakened immune systems, which make it more difficult for their bodies to fight off infections. Additionally, they may have underlying health conditions and dietary restrictions that further complicate their health. In a nursing home setting, close living quarters and communal dining can contribute to the rapid spread of foodborne pathogens. Thus, this demographic is particularly at risk when it comes to food safety, making them a focus for food safety training and regulations.

In contrast, the other groups listed—teachers, nurses, and college students—while they may have specific health considerations or situations, do not represent the same level of vulnerability as the elderly in nursing homes. Teachers and nurses are typically in good health and often have training in health-related matters, making them less susceptible. College students may also have a stronger immune system and less chronic health issues compared to the elderly, further differentiating the susceptibility levels of these populations.