The correct answer to this question is that Emerson believes that a sentence can be grammatical in context but ungrammatical in isolation. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Miss Ophelia may not be right cause you didn't list choices.
I think that the answer is dark and suspenseful. Hope that helps
If you want to refer back to words of a previous speaker simply put quotation marks around what they said and site your source