Obsessed is most appropriate to describe a person whose mind and heart are concentrated on one idea to the exclusion of everything else.
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I believe The correct answer should be C if your obsessed you focus on the one thing and nothing else that's all you think about
Answer:
it is a metaphor
Explanation:
Because you are comparing something without using like or as, if you were using like or as it would be a simile
to take breaks and not do all the work at once
their barriers will be bigger