Both comet types come from some location near the ecliptic plane of the Solar System, but the long-period comets come from farther away. B. Both comet types come from random directions in a spherical distribution around the Sun, but the long-period comets come from farther away. C. Short-period comets come from a random direction in a spherical distribution around the Sun, and long-period comets come from farther away, in some location near the ecliptic plane of the Solar System. D. Short-period comets come from some location near the ecliptic plane of the Solar System, and long-period comets come from farther away, with random directions in a spherical distribution around the Sun.