One Astronomical Unit is the average distance between
- AEarth and the SunCorrect
- BEarth and the Moon
- CJupiter and the Sun
- DPluto and the Sun
Explanation
An Astronomical Unit, commonly abbreviated as AU, represents the mean distance between the Earth and the Sun. Because Earth travels in an elliptical orbit, its distance from the Sun changes throughout the year. The AU is defined as the average of these distances, measuring approximately 150 million kilometers or 93 million miles. It serves as a fundamental yardstick for measuring distances within our solar system. Therefore, option A is the correct answer.
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