Give the domain and range of the relation.{(2, 2), (-1, -1), (-7, -7), (5, 5)}
A. Domain: {2, 5}; Range: {-7, -1}
B. Domain: {-7, -1}; Range: {2, 5}
C. Domain: {-7, -1, 2, 5}; Range: {-7, -1, 2, 5}
D. None of the above
Answer: C
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