Determine Whether the Relation Represents a Function

Multiple Choice

Determine whether the relation represents a function. If it is a function, state the domain and range.
-{( 41, -2) , ( 5, -1) , ( 5, 0) , ( 6, 1) , ( 14, 3) }

A) function
Domain: { 41, 6, 5, 14}
Range: { -2, -1, 0, 1, 3}
B) function
Domain: { -2, -1, 0, 1, 3}
Range: { 41, 6, 5, 14}
C) not a function