Answer:
D. 11ºC to 31ºC
Step-by-step explanation:
In mathematics, the range of a set of numbers is the difference between the highest value in the set with the lowest value in the set. Therefore, all the numbers in between these two values would be part of the range of the set. Knowing this we can see that the highest value in this set is 31ºC while the lowest value in the set is 11ºC. Therefore, the range of this set would be 11ºC to 31ºC