aubrey201 aubrey201 02-06-2015 Mathematics Answered Which relation is a function? A. {(8, –1), (2, –1), (3, 8), (2, 5} B. {(7, 12), (1, –5), (3, –10), (2, –5)} C. {(–3, 4), (–2, 5), (0, 9), (0, 12)} D. {(1, 2), (1, 5), (1, –1), (1, 4)}