I believe it would be declarative because it is stating a fact.
Interrogative is a question and will allmost always end in a question marks.
Imperative is an order and will almost always end in a period.
Exclamatory shows excitement or concern ends most often with a exclamation mark.
        
             
        
        
        
<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>