In narrative writing, using first-person point of view tells the story from the perspective of someone who
a is part of the story
b can observe all of the characters of the story from the outside
c can observe only one of the characters of the story from the outside
d is completely outside the story and has only second-hand knowledge

A- is part of the story

Explanation:

A good way to remember this is that 1st person puts someone in the story first.  

A is part if the story

Explanation:

This can be one of the main characters telling incidents happening i. Their lives (can be fiction or non fiction) or one of their acquaintances telling a story about the main character

in the story "marionettes inc," in the last line of the story, braling two is referred to by the narrator as the "someone." what does this new identifier imply and how does it add to the drama of the closing scene?