At this point [4], the writer is considering adding the following information:
'-e-books, audio and video materials, and online journals.'
Should the writer make this addition here at [4]?
Option A is the best answer because it states accurately why the proposed clause should be added to the sentence. Without these specific examples, readers have only a vague sense of what “nonprint” formats might be. B, C, and D are incorrect because each represents a misinterpretation of the relationship between the proposed clause to be added and the surrounding text in the passage.