Science Bowl Question

W) There was too big of a gap between Mars and Jupiter to form a planet

X) Mars had two moons and planetesimals [plan-i-TES-uh-muhls] in that location were not large enough to form another moon

Y) The planetesimals in that location were moving too slowly to accrete to form a planet

Z) After Jupiter was formed, planetesimals in that location were perturbed by Jupiter's gravity and could not form a planet