Explanation
Correct answer: C.
Choice C is the best answer because it most logically completes the text’s discussion of science fiction’s relationship to real-world technological advancements. In this context, “catalyst of” means something that prompts the development of. The text indicates that science fiction narratives have “spurred many actual innovations,” giving as examples Verne’s From the Earth to the Moon “inspiring” aerospace engineering developments and Star Trek “sparking” the design of early analogues of smartphones. Thus, this context supports the idea that science fiction has prompted the development of, or served as a catalyst of, real-world technological advancements.
Why the other choices are wrong
Choice A
Choice A is incorrect because saying that science fiction has served as a “constraint to,” or limitation on, real-world technological advancements would contradict the text, which indicates that science fiction has inspired technological innovation rather than inhibited it.
Choice B
Choice B is incorrect because describing science fiction as a “sponsor of,” or an entity who takes on responsibility for, real-world technological advancements wouldn’t make sense in context. A sponsor provides material support for an undertaking, often by providing funds for the undertaking or by overseeing its management, but the text describes science fiction as inspiring or sparking ideas for innovation, not as financially backing technological development or taking direct responsibility for overseeing it.
Choice D
Choice D is incorrect because in this context, a “diversion from” would mean either a distraction from or a deviation from, which contradicts the text’s examples of science fiction inspiring real-world technological advancements. It therefore wouldn’t make sense to say that science fiction has distracted people from such advancements or that the innovations science fiction depicts deviate from actual innovations.