1st one, to increase clarity and effectiveness
Answer:
To provide important details about how a character Interacts with the setting
B. To provide insight into elements of the story that are based on historical events
C. To provide information on th to provide information on thev authors bias or personal opinion
D.To provide clues as to how the central conflict of the story will be resolved
the authors purpose is to inform readers, so therefore it needs to be understandable and clear how to do what the reader went to the source to learn how to do, so, A would be the answer.
hope this helps!