The correct answer is B. caught in a robber's cave, just before one was murder
Step-by-step explanation:
In the excerpt presented, the narrator describes the feelings and thoughts of Marian as she is in a close and darkroom. Additionally, in this excerpt, the general mood can be described as dangerous, which means the general atmosphere of the story or feeling evoked is danger. This mood is emphasized by the description of the setting, but it is directly shown in the excerpt "caught in a robber's cave, just before one was murder" because this shows not only that the room is dark or Marian is afraid but that it is likely she is in great danger. According to this, the excerpt that creates the most dangerous mood is B.