The correct answer is C. So by and by I ran away. I said I never would come home again till I was a pilot and could come in glory.
Step-by-step explanation:
The type of narrator or voice that tells the events that occur in a story is called the point of view, this point of view can be classified as a first-person, second person and the third person omniscient or limited. In the case of first-person point of view, this occurs when it is one of the characters (usually the main character) involve in the story the one that tells the events that occur from his or her own perspective, due to this, when the story is told in the first person it is common to the narrator uses the pronoun "I" to refer to the events in which he or she is involved as well as his or perspective about the situation. Considering this, the excerpt from Mark Twain's Life on the Mississippi that best shows that the story is told in first-person is "So by and by I ran away. I said I never would come home again till I was a pilot and could come in glory", because this is the only excerpt that includes the pronoun "I" to refer to the events of the story and therefore the one that most clearly shows the narrator is one of the characters and that the story is told using first-person.