The set of ordered pairs shown below is a relation that is a function of x. {(-5, 1), (-4, 1), (-3, 1), (-2, 1)} Which ordered pairs could be included in the set so that the relation remains a function of x?
A (-6, 1), (-1, 1)
B (-2, 2), (-1, 1)
C (-3,0), (-1, 1)
D (-6, 1), (-5, 1)
