With artificial intelligence, automation, and robotics now _________ "Will human labor eventually become obsolete?"
Which choice completes the text so that it conforms to the conventions of Standard English?
ubiquitous, the economist raises the question:
ubiquitous. The economist raises the question,
ubiquitous; the economist raises the question:
ubiquitous; the economist raises the question,
Correct Answer: A
Choice A is the best answer. The colon correctly introduces the quote as an appositive to "the question." The comma before "the economist" correctly separates the introductory phrase.
Choice B is incorrect because the period creates a fragment of the introductory phrase. Choice C is incorrect because a semicolon cannot separate the introductory phrase from the main clause. Choice D is incorrect because a comma is weak for introducing a formal question/quote in this structure.