Answer:
-3° C < 1°C is the correct option.
Explanation:
As we know that:
- The inequality symbol '<' means 'less than'.
- The inequality symbol '>' means 'more than'.
If someone says that something is cooler than the other thing, it indicates that it is lesser than the other based on its temperature.
As the ice cream at −3°C is cooler than ice cream at 1°C, it indicates that temperature -3° C < temperature 1°C.
Therefore, -3° C < 1°C is the correct option.