Identify the domain and the range of the given relation. Then tell if it is a function or not. {(3, 6), (5, 7), (7, 7), (8, 9)}
A.Domain {6, 7, 9} Range {3, 5, 7, 8} Function
B.Domain {3, 5, 7, 8} Range {6, 7, 9} Function
C.Domain {3, 5, 7, 8} Range {6, 7, 9} Not a Function
D.Domain {6, 7, 9} Range {3, 5, 7, 8} Not a Function