Piero is an architect on vacation from his home in peru and goes to the clinic for a physical. his doctor draws some blood and is concerned that piero tests positive for cocaine metabolites in his bloodstream. his uncle tells the doctor, "don’t worry about it. he usually has cocaine in his system, but he isn’t addicted to cocaine." why is piero’s uncle so casual about cocaine in his nephew’s bloodstream? a) coca leaf chewing is part of the culture in peru and is not associated with levels of toxicity and abuse associated with powdered cocaine
b) piero is a drug smuggler, and his uncle is trying to protect him.
c) smoking coca paste mixed with tobacco is part of the culture in peru and does not produce levels of toxicity and abuse associated with powdered cocaine.
d) piero drinks lots of coca-cola, which has cocaine as an ingredient.