Identify the surface whose equation is given.7r2+ z2=1an ellipsoid centered at the origin with interceptsx =17, y =17, z =1a sphere centered at the origin with interceptsx =1, y =1, z =1a cylinder centered at the origin with interceptsx =17, y =17, z =1an ellipsoid centered at the origin with interceptsx =17, y =17, z =1a cylinder centered at the origin with interceptsx =17, y =17, z =1