The correct answer is: [B]: "However" .
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It basically summarizes the topic or the concept of the paragraph. It states clearly what was explained in the paragraph. Usually it's at the end of a paragraph. So I think what you chose is right.. check again though
changing "it's" to "it is"
Answer:
noun
1.
a deeply distressing or disturbing experience.
"a personal trauma like the death of a child"
2.
MEDICINE
physical injury.
"rupture of the diaphragm caused by blunt trauma"
