Respuesta :
A,because Headings and subheadings represent the key concepts and supporting ideas in the paper. They show levels of importance.
Answer:
a
Explanation:
Headings and subheadings represent the key concepts and supporting ideas in the paper. They visually convey levels of importance. Differences in text format guide readers to distinguish the main points from the rest. Headings are generally bigger, if not more conspicuous, than subheadings.