The text describes a pub in London that resembles Sherlock Holmes's room. The main topic is related to Sherlock Holmes and Conan Doyle's stories, and the location 221B Baker Street. Option D, "Conan Doyle and his characters," is the most fitting heading as it encompasses both the author and his creations, which are central to the description.
The text states that the pub room is exactly like Sherlock Holmes's room as described in Conan Doyle's stories. This implies that Sherlock Holmes is a character created by Conan Doyle. Therefore, option C, "Dr. Watson was Conan Doyle's book character," is the most logical inference, assuming Dr. Watson is a character in Conan Doyle's books and the pub room represents that character's setting.
The text mentions that the pub is exactly like Sherlock Holmes's room described in Conan Doyle's stories, implying the existence of these stories and the popularity of detective fiction. Option D, "The fashion of the detective stories goes on," is the most likely incorrect statement as the text doesn't provide information about the current popularity or continuation of detective stories. It focuses on the depiction of a specific room from those stories.
Note: The order needs to be determined based on the provided text. However, the text itself does not contain all the information to definitively order these sentences as a narrative. Some sentences provide background (author, creation), while others describe characteristics or settings. For a logical flow based on the provided text and general knowledge about Sherlock Holmes, a possible order would be:
The provided text mainly focuses on a pub in London and its resemblance to Sherlock Holmes's room, rather than a chronological account of Sherlock Holmes.