Evaluating everything you read, hear, and see in the media
Answer:
Allusion is the answer. It's mentioning the river and what it's known for but not telling you the name of the river.
Mr. Praed says he knows nothing of Mrs. Warren's profession, but his behavior indicates otherwise. However, he does not seem bothered by the fact that Mrs. Warren is a "working woman." He is nonjudgmental. As an architect, he is not of the upper class, but of the middle class.
Mr. Crofts, however, is directly involved in Mrs. Warren's profession by the fact that he owns brothels. His moral sensibility is much worse than Mr. Praed's as a result. He is a member of the upper class and feels very entitled to his wealth--also lowering his moral sensibility.
Answer: A
Explanation: In gothic literature everything is almost sad and gloomy. The atmosphere is intense and dark. There is also a lot of tension one way or another because a character might be fighting against the voices in his head, is a monster, or has dealings with the supernatural.