An ellipse intersects the hyperbola `2x^2-2y =1` orthogonally. The eccentricity of the ellipse is reciprocal to that of the hyperbola. If the axes of the ellipse are along the coordinate axes, then (b) the foci of ellipse are `(+-1, 0)` (a) equation of ellipse is `x^2+ 2y^2 =2` (d) the foci of ellipse are `(t 2, 0)` (c) equation of ellipse is `(x^2 2y)`