Determine If the Relation Illustrated Is a Function

Multiple Choice

Determine if the relation illustrated is a function. Give the domain and range of the function or relation.
-{(11, -4) , (-5, -3) , (-5, 0) , (4, 3) , (20, 5) }

A) function
B) function domain: {-4, -3, 0, 3, 5} domain: {11, 4, -5, 20}
Range: {11, 4, -5, 20} range: {-4, -3, 0, 3, 5}
C) not a function
D) not a function domain: {11, 4, -5, 20} domain: {-4, -3, 0, 3, 5}
Range: {-4, -3, 0, 3, 5} range: {11, 4, -5, 20}