SAT English Practice Question

The author’s use of commas in this sentence separates a series of words that describe the same thing, all of them aspects of the character’s personality. The commas help to create a sense of rhythm and flow in the sentence, making it more pleasing to read. What is the most likely reason why the author uses a series of commas in this sentence?

1. A.create a sense of emphasis and importance.
2. B.create a sense of rhythm and flow.
3. C.separate a list of items that are not related.
4. D.show that the sentence is complex and sophisticated.