What are the domain and range of the function {(3, 1), (5, –1), (9, –1), (2, 7), (–4, 1)}?


A.

Domain: {3, 5, 9, 2 }; Range: {1, 7}


B.

Domain: {3, 5, 9, 2, –4}; Range: {1, –1, 7}


C.

Domain: {1, –1, 7}; Range: {3, 5, 9, 2, –4}


D.

Domain: {1, 7}; Range: {3, 5, 9, 2 }