[ Grammar ]
Which sentence uses the correct article?
A. A sun is a star at the center of a solar system.
B. An sun is a star at the center of a solar system.
C. The sun is a star at the center of a solar system.

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Subject, Object, Possessive Pronoun and Possessive Adjectives › ViewThis is not my house. It is ________.
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Mr. Wilson is _______ as Willie to his friend.
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