An authors purpose is his or hers Reason for writing
Answer:
C. The length of the presentation and D. The authority of the quoted experts
Explanation:
The answer for your question is actually D because when talking about context its best you have quoted experts but in general I would say both.
For your question though so you don't get confused on which answers it is its
The answer is A contrasting bright colors and dark colors.
So we will have a healthy lifestyle and so we can keep helping people in need