A parabola is modeled with the equation x2 – 12x + 4y + 24 = 0. Which is the domain and range of the parabola?

D: (–∞, ∞); R: (–∞, 3]
D: (–∞, ∞); R: [3, ∞)
D: (–∞, 3]; R: (–∞, ∞)
D: [3, ∞); R: (–∞, ∞)