1. why do authors of the seven wonders of the world and art architecture and learning in egypt both use subheadings a. to clarify important vocabulary b. to show the central idea of the text c. to suggest other title for the articles d. to separate supporting details explain why u choose answer

Has no one answered this yet?   Anyways this is the answer                                                                                                                                                                       
D. To separate supporting details

Bbecause if the reader doesnt like vondermoot then it won’t be a seamless story