Answer:
D. It does represent a function. Each value of the domain matches to exactly one value of the range.
Step-by-step explanation:
The mapping shows that each of the set of the domain values has exactly one range value.
For a relation to be called a function, every domain value must have at exactly one range value. A domain value should not be assigned or mapped to more than one range value.
Therefore, the relation above can be said to be a function because, each value of the domain matches to exactly one value of the range.