Which food must be stored at or below 41 degrees chicken salad strawberry jam whole tomatoes peanut butter sandwiches?

Here's why:

* Chicken salad is a perishable food containing cooked poultry, which is highly susceptible to bacterial growth at room temperature. Storing it at 41 degrees Fahrenheit or below helps slow down bacterial growth and prevents foodborne illness.

* Strawberry jam is a high-sugar food and is generally safe to store at room temperature.

* Whole tomatoes are also generally safe to store at room temperature, although refrigeration can prolong their shelf life.

* Peanut butter sandwiches can be stored at room temperature for a short period but are best stored in the refrigerator for optimal freshness and safety.

Important Note: It's always best to follow specific food safety guidelines provided by the manufacturer on the food label.