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A textbook states distances in AU. One AU is the distance from the Sun to:

APluto
BVenus
CCeres
DEarth
Answer & Solution
Correct answer: D. Earth
1. AU stands for astronomical unit. 2. It is defined by the Earth to Sun distance. 3. So one AU reaches Earth. _Source: OpenStax Astronomy 2e, Chapter 7, Other Worlds: An Introduction to the Solar System._
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