Select the Graph of the Equation as a Circle,a Parabola,an $$y ^ { 2 } - 9 y - 4 x - 21 = 0$$

Multiple Choice

Select the graph of the equation as a circle,a parabola,an ellipse,or a hyperbola.​ $$y ^ { 2 } - 9 y - 4 x - 21 = 0$$ ​

A) Parabola
B) Circle
C) Hyperbola
D) Ellipse
E) None of the above