The correct answer would have to be C age.
<span>An expert is someone who expends the least amount of energy for the greatest result.
We call a person an expert if he performs really perfectly as compared to the newcomers because he is highly trained and professional and has the abilities to a specific art. Expertise is usually measured on the basis of intelligence and activeness together. Experts can never be seen unconfident in doing their job.
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Ck?... uhm Have a good day though, go drink water and eat
Answer:
nicotine
Explanation:
it is a highly addictive substance
