Find the Domain and Range

Find the domain and range.
-{(-5, -11) , (-9, -10) , (12, 7) , (6, 2) , (-3, 3) }

A) D = {-10, -11, 3, 7, 2}; R = {-9, -5, -3, 12, 6}
B) D = {3, 12, 7, 6, 2}; R = {-9, -10, -5, -11, -3}
C) D = {-9, -10, -5, -11, -3}; R = {3, 12, 7, 6, 2}
D) D = {-9, -5, -3, 12, 6}; R = {-10, -11, 3, 7, 2}