The MOST likely origin of the "dirty snowballs" that become comets when they are deflected into orbits that bring them closer to the Sun is the
A) icy surfaces of the moons of Jupiter and Saturn.
B) dust and gas clouds in the Milky Way Galaxy.
C) asteroid belt because most asteroids are actually comet nuclei.
D) Kuiper belt and Oort cloud surrounding the solar system.
Correct Answer:
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