Which of the following points lies on the directrix of the parabola y2=12xy^2 = 12xy2=12x?
(−3,5)(-3, 5)(−3,5)
(3,5)(3, 5)(3,5)
(0,−3)(0, -3)(0,−3)
(12,−3)(12, -3)(12,−3)