The purpose of focus points is to maintain a person more concentrated on the important parts of something
Answer:
It exposes you to many new ideas rather than having you only thing about your own views. You may realize there is something wrong with your own thinking or that someone else also has a good idea or different way of thinking.
Explanation:
The answer is the last one, D. All of the other transitions indicate that the writer will either go into further detail on the subject or list other reasons as to why this would be correct. However, D clearly uses a contrasting transition to introduce a new argument.