Explanation
Correct answer: D.
Choice D is the best answer. The sentence uses “both” to emphasize a thematic similarity between Tan’s two books, noting that both Tales from Outer Suburbia and Tales from the Inner City describe surreal events occurring in otherwise ordinary places.
Why the other choices are wrong
Choice A
Choice A is incorrect. The sentence emphasizes a difference (one contains fewer stories than the other), not a similarity, between the two books.
Choice B
Choice B is incorrect. The sentence indicates that Tan’s books were published ten years apart; it doesn’t emphasize a similarity between the two books.
Choice C
Choice C is incorrect. The sentence uses “unlike” to emphasize a difference between Tales from Outer Suburbia and Tales from the Inner City; it doesn’t emphasize a similarity between the two books.