Explanation
Correct answer: D.
Choice D is the best answer because it most logically completes the text’s discussion of linguists using social media to study changes in language usage in real time, providing the specific example of the affix meng- in Bahasa Indonesia. The text states that linguists first observed meng- being used as an onomatopoeic tag on social media, which then spread to being affixed to existing words in text posted on social media; from there, it has begun to move into spoken Bahasa Indonesia. As presented in the text, this progression from online usage to spoken language suggests that social media does more than just register or reflect changes in language—it can actively drive such changes. In the case of meng-, the text suggests, social media facilitated the movement of the affix from an online tag to part of spoken Bahasa Indonesia.
Why the other choices are wrong
Choice A
Choice A is incorrect because the text doesn’t differentiate between social media’s usefulness for studying informal versus formal or official language; it merely notes that Bahasa Indonesia is an official language.
Choice B
Choice B is incorrect because while the example given in the text focuses on changes in Bahasa Indonesia, the text doesn’t provide any evidence that social media is exerting an exceptionally strong influence on the evolution of this particular language compared to others. In fact, the text states that "linguists have noted many similar examples of this phenomenon occurring in other languages," suggesting that social media’s influence is evident across multiple languages and not unique to Bahasa Indonesia.
Choice C
Choice C is incorrect because the text never suggests that social media provides a somewhat misleading sense of how languages are changing. Rather, the text suggests that by allowing linguists to directly observe linguistic changes, social media offers a clear window into language evolution.