Find the Domain and Range

Multiple Choice

Find the domain and range.
-{(6,7) , (6,2) , (-4,3) , (9,5) , (-1,8) }

A) domain = {9, -4, -1, 6, -4}; range = {5, 8, 2, 3, 7}
B) domain = {9, 14, -1, 6, -4}; range = {5, 8, 2, 3, 7}
C) domain = {5, 8, 2, 3, 7}; range = {9, 9, -1, 6, -4}
D) domain = {9, -1, 6, -4}; range = {5, 8, 2, 3, 7}