If an object of mass m = 1kg, is projected horizontally (parallel to the local horizon) from a point P which is at height h = 1km above (spherical) earth’s surface at a speed of 30m/s, the trajectory traced relative to earth (ignoring aerodynamics) will be a portion of:
(a) Ellipse with apogee at P
(b) Parabola with focus at center of earth
(c) Parabola with vertex at P
(d) Ellipse with perigee at P