Answer:
Option B. is the answer.
Step-by-step explanation:
In the table, elevation is the input and amount of snowfall is the output.
It means when we put the value of elevation in the given function that represents the whole relation, we get the value of snowfall.
To represent any function for each value of input we should get a different value for output. In this situation each amount of snowfall is paired with one elevation.
Therefore Option B. is the answer.
