Question Each answer choice below represents a relation by a set of ordered pairs. In which of the answer choices is the relation function? Select all correct answers. Select all that apply: {(2,1), (1,3), (-5.9),(8,1)} {(2,1), (-2,-1), (2, 12), (4,7)} {(9,-2), (4, 13), (0,7), (3, 13)} {(7.-2), (2.9). (-1,6), (1,6)} {(-5, 10), (6,9), (7,-2), (6,5)}