You did not provide the possible excerpts, however, nonstandard English is any type of English language that is not standardized, meaning that is not grammatical or normative. Slang, jargon, incorrect grammar, dialects, all fall into the category of nonstandard English, so use that logic on your excerpts and find the correct one.
This post of view is a person's thoughts, which is first person. First person is the reader reading as the character, and that's how this introductory line is written.
C.
The answer is: <span>an educated guess or logical assumption based on available information.</span>
