What is the domain of the relation \{(2,8),(0,8),(-1,5),(-1,3),(-2,3)\}?
A\{8, 5, 3\}
B\{8, 5, 3, 2, 0, -1, -2\}
C\{2, -1, -2\}
D\{2, 0, -1, -2\}
A\{8, 5, 3\}
B\{8, 5, 3, 2, 0, -1, -2\}
C\{2, -1, -2\}
D\{2, 0, -1, -2\}