They give the piece a dreary, melancholy tone.
The imagery of these quotes are very dark and gloomy. They change the author's tone into a more dreary, melancholy tone.
His monologue prevents him from interrupting other characters while they are having an aside during the speech.
A limited point of view means you only know the thoughts of one character. An example is: Mr.Kirk looked at Joey strangely. Joey thought that Mr. Kirk was a creep. Here you only know Joey's thoughts.
Omniscient means you know everyones different thoughts. Here is an example using the same people: Mr.Kirk stared at Joey strangely, feeling like he recognized him. Joey just thought Mr.Kirk was a creep. Here you know both characters thoughts.
Limited can let you know more about one person while omniscient lets you see other sides of the story.
B. Fear
John was happy that he might meet Carolyn again after three years..but moving on further in to the short story..we notice that she accused him of being insensitive, even thoughtless! So, putting ourselves in his shoes...it's logical that he would feel just a bit of fear. How would she react? Would she view John the same, insensitive and thoughtless?
These are just my thoughts, but I know the answer is B.