The head chef of the bistro refused to hire the applicant because he could not identify the three essential _________ celery, and carrots.
Which choice completes the text so that it conforms to the conventions of Standard English?
ingredients. Onions,
ingredients, onions,
ingredients: which are onions,
ingredients: onions,
Correct Answer: D
Choice D is the best answer. The colon correctly introduces the list of ingredients that follows the independent clause.
Choice A is incorrect because the period creates a fragment of the list. Choice B is incorrect because a comma is insufficient to introduce the list in this context. Choice C is incorrect because "which are" makes the clause dependent, and a colon should follow a complete independent clause.