Give the Domain and Range of the Relation

Multiple Choice

Give the domain and range of the relation.
-{(-6, -2) , (10, -6) , (9, -5) , (9, 8) }

A) domain = {10, 9, -6, -9}; range = {-6, -5, -2, 8}
B) domain = {-6, -5, -2, 8}; range = {10, 9, -6}
C) domain = {10, 9, -6}; range = {-6, -5, -2, 8}
D) domain = {10, 9, -6, 19}; range = {-6, -5, -2, 8}