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
Cause she is scare and worried Betty might actually die
Could you take a better picture i cant see it very well lol sorry
D. look up the unfamiliar word in a dictionary to check its meaning.
Context clues will always provide hints with regard to helping readers figure out what a word or term means. However, after figuring out what a word means based upon context clues (which should only be considered the first step), what you should do is look up the word in question. This should be done so you could check your interpretation as well as help you commit the new word or term to memory.
I feel that C. is definitely one of the answers. D. might also be an answer.