Answer:
implicit
Explanation:
imply - indicate the truth or existence of (something) by suggestion rather than explicit reference.
implicit - suggested though not directly expressed.
He tells about his story as a child growing up to where he was when he made the book. His story showed the unfairness in being a slave.
Exercise helps lower heart disease.
Do some research to support what you will say, don't plagiarize. Have contect to support your case.
I think you could pick both B and D in this situation. You didn't include the passage so I have nothing to go on here except my little knowledge of the story from when I read it.