If g(x) = (x + 3)2 + 6, which statement is true? A. The axis of symmetry of f(x) is x = -5, and the axis of symmetry of g(x) is x = 6. B. The axis of symmetry of f(x) is x = 4, and the axis of symmetry of g(x) is x = -3. C. The axis of symmetry of f(x) is x = -5, and the axis of symmetry of g(x) is x = -3. D. The axis of symmetry of f(x) is x = 4, and the axis of symmetry of g(x) is x = 6