The Oort cloud is
A) a random distribution of short-period comets extending from inside the orbit of Jupiter to approximately the orbit of Neptune.
B) another name for the asteroid belt.
C) a flat or doughnut-shaped distribution of distant comets around the Sun, extending out about 500 au.
D) a spherical distribution of distant comets around the Sun, extending out about 50,000 au.
Correct Answer:
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