<span>(B) would be the most correct answer. Each heading, written in a concise manner, allows the reader to quickly glean the points that will be made in the following section. This allows the reader to go to the specific part of the paper that he or she requires if they are looking for a certain piece of information.</span>
I think it may be however price is also a key factor.
The best way to understand an informational text is by reading the important facts including numbers, etc. (If there's any)
