Answer:
A star at the center of our solar system.
Explanation:
An appositive is a noun or a noun phrase that renames another noun right beside it. It can be short or long.
On this case, the appositive is nonessential because its surrounded by commas, separated from the rest of the sentence. It interrupts the sentence.
If the information given in the appositive is essential to the sentence´s meaning is called Appositive restrictive and commas are no longer used for these cases.
I hope this answer helps you.
The most descriptive sentence out of your options is C.
This sentence describes what the author wants the reader to see. The other sentence options are just statements without much color or description.
Hope that helps!
-Chris
Idk maybe look on google if not look up just telling of epics and it might say it in there