Answer:
"But a subgroup of kids, about 10% or 20%, showed a dramatic onset of symptoms after their injury and persistent symptoms that in some cases remained even 12 months after the injury."
Explanation:
I read the Article and took the quiz. I really hope this help :D
Well although the two are very close in comparison, an autobiography is a book that the author writes about their whole lives and themselves while a memoir is only part of the author's life that he writes about. Hope that helps!
I was thinking between either C or D but D seems to make more sense to me.
