Answer:
The audience makes it better. The writer is happy people love their books.
Explanation:
The answer is C, I believe.
C. Suzie, my best friend, is also an amazing athlete.
It is the sentence that does not contain any errors in comma usage.
Usage of commas
1) to separate items in a series
2) to separate coordinating adjectives
3) to separate two independent clauses (compound sentence)
4) to separate the introductory words from the independent clause.
5) to separate nonessential words, phrases, and clauses
* All choices contain an "appositive". An appositive renames the subject.
My best friend is an appositive for Suzie.Thus it is enclosed by commas to separate it from the rest of the sentence.
