Question

multiple-choice question
what device is at $4^\circ$c?
toaster oven
refrigerator
rewatch

Explanation:

A toaster oven is used for heating/cooking, so its temperature is much higher than 4°C. A refrigerator is designed to keep food at cool temperatures, and 4°C is a typical temperature for a refrigerator (used to store perishables like dairy, vegetables, etc. at a cool but above-freezing temperature). "Rewatch" is not a device related to temperature control.

Answer:

B. Refrigerator