Which statement best explains how the structure of the passage helps the author develop his or her argument?
A) The passage contains sections, which enables the author to give an elaborate description of his or her ideas.
B) The passage is separated into sections with headings, which enables the author to compare and contrast his or her ideas precisely.
C) The passage contains headings, which enables the author to give additional information to the readers.
D) The passage is divided into sections with headings, which enables the author to organize and introduce the main ideas in the text.