The answer is A. Gothic literature generalyy is defined as writings that <em>employ dark scennery, and an overal atmosphere of mystery, fear and dread</em>, <em>revolving around a house that conceals a terrible secret</em>. In the exerpt, the speaker asks Agnes about a woman <em>she saw as real as any other servant, which Agnes had not seen, and looked at her in disbelief.</em>