From my my experience this usually differs depending on the type of book it is, but I think the best choice is either A, to help the reader understand new concepts, or C., It allows the reader to focus on key ideas and information during the reading. I'd pick C though, since it's more in depth and makes more sense.
B. doesn't make that much sense unless the book is an argumentative or a persuasive book.
D. only applies to personal narratives. Nobody can understand a writer's personal experiences and attitudes otherwise.
Answer:
Basic unit of a chemical element
Explanation:
<span>Endeavor means to B. make an attempt to do something. An example of its use is; It is my endeavor to answer this question correctly.</span>
C.serving as a chaplain in the army
Answer:
well, here is your answer...
thank you, please mark me as the brainiest...
