Both the first and last one
<span>Surprise the reader, since it is used rarely. remind the readers that the story is a work of fiction. reveal how people think and help readers to visualize the characters. emphasize regional accents, making the characters seem realistic. </span>
Not only, and but also are the complete correlative conjunction in the sentence.<span />
It is a compound sentence because it has a word to connect 2 pieces of thoughts
