Answer:
In my opinion, B would be the best answer. To organize the information and inform the readers what the paragraph is about. The subheadings do fit in does two categories. They tell the reader what the paragraph is about like the main idea of the passage. It helps the reader know what this about and understand a little bit more. C doesn't do well, because that isn't the purpose of subheadings. D) only a few same good because to make the passage look more attractive.
That wouldn't make sense.
Hope this helps \(⌒▽⌒)