Describe the Graph of X² + 4z² = 2y

Describe the graph of x² + 4z² = 2y.

A) a hyperboloid of one sheet
B) a hyperboloid of two sheets
C) a hyperbolic paraboloid
D) an elliptic paraboloid
E) an ellipsoid (or a sphere)
F) a cylinder (circular, elliptic, parabolic, or hyperbolic)
G) a cone (circular, elliptic, parabolic, or hyperbolic)
H) none of the above