Answer: b) The doorway is worn and neglected.
Step-by-step explanation: Gothic fiction also known as gothic horror is a genre of literature that is characterized by having elements of terror, fear and death. The settings of gothic fiction are usually old buildings often abandoned, landscapes of death nature, also places with poor illumination, etc. In the given excerpt from "The Strange Case of Dr. Jekyll and Mr. Hyde", the description of the door as "worn and neglected" is an example of a setting of gothic fiction.