Give the Domain and Range of the Relation

Multiple Choice

Give the domain and range of the relation.
-{(6, 6) , (11, -5) , (3, 4) , (3, -3) }

A) domain = {6, 3, 11}; range = {6, 4, -5, -3}
B) domain = {6, 3, 11, -3}; range = {6, 4, -5, -3}
C) domain = {6, 3, 11, 13}; range = {6, 4, -5, -3}
D) domain = {6, 4, -5, -3}; range = {6, 3, 11}