Group of stars.
An appositive or appositive phrase renames a noun or pronoun that is right beside, specifically after, it. It is usually used to provide additional information, like a definition or clarification. In this sentence, "group of stars" is defining "constellations" making it the appositive phrase.
The ansewer you are looking for as A
The works cited page is where you cite every you use throughout the paper. Websites,journals, articals, and yes, the images you copied and pasted to your paper...
Answer: c
Explanation: rhetoric means persuasive speaking or writing and when writing a book about the 100 most famous people in the world you have to remember that the author is going to give you evidence and try to convince you that the author's point of view is right