59. The author blames the lack of smoke detectors in households on the reason that ______.
(A) smoke detectors are too expensive
(B) smoke detectors often cannot work properly
(C) smoke detectors are difficult to install
(D) people are ignorant about the need for smoke detectors(2) Sherlock Holmes and Arséne Lupin are two fictional characters in the late 1800s and early 1900s. Holmes was the famousdetective developed by Sir Arthur Conan Doyle from Britain, and Lupin was a “gentleman” thief created by a Frenchman, MauriceLeblanc.While each author’s series of books with their famous characters sold very well in each author’s country, Leblanc decided to trysomething different and introduce Sherlock Holmes into his short story “Herlock Sholmès Arrive Trop Tard” (“Sherlock HolmesArrives Too Late”) in Je Sais Tout (I Know All), which had the Lupin character in it. This is the first time the two characters actually“met.” No one is sure why Leblanc used the Holmes character in his story, but it may have had something to do with setting up amystery scene to find out who was cleverer: Holmes or Lupin.Holmes appeared in later two Leblanc stories, which was, again, a unique situation to have two characters from two differentauthors in the same book. Interestingly, Doyle objected to his character being written about in someone else’s work, so he made alegal protest. Leblanc, thus, changed Holmes’ name in his story to “Herlock Sholmes.” Despite Doyle’s objections, the characters hadmuch in common: they were both very intelligent, sophisticated and could be considered “gentlemen,” even though Lupin was athief.Though it is much more common now for characters in books and movies to appear in works of fiction written by other authors,Leblanc truly broke new ground by using Holmes in his stories.