In 1959, marine biologist Dr. Albert Jones founded the Underwater Adventure Seekers, a scuba diving blank that is the oldest club for Black divers in the United States and that has helped thousands of diving enthusiasts become certified in the field.
Which choice completes the text so that it conforms to the conventions of Standard English?
club
club,
club—
club, and
Choice A is the best answer. “That is…field” is an essential supplement, so we should not use punctuation to separate it from “scuba diving club.” .
Choice B is incorrect. This choice creates a punctuation error. “That is…field” is an essential supplement, so we should not use a comma (or any kind of punctuation) to separate it from “scuba diving club.” . Choice C is incorrect. This choice creates a punctuation error. “That is…field” is an essential supplement, so we should not use a dash (or any kind of punctuation) to separate it from “scuba diving club.” . Choice D is incorrect. This choice creates a run-on sentence. It makes “that is…United States” into an awkward independent clause, but it also makes “that has…field” into its own awkward independent clause without the correct punctuation separating it.