Respuesta :
I would have to say either blood type or their age but most likely their age
Old age and gender affect a person's blood alcohol concentration.
What BAC means?
BAC refers to the percent of alcohol in a person's bloodstream.
What is BAC and how is it determined?
The amount of alcohol in the bloodstream is measured in milligrams (mg) of alcohol per 100 milliliters (ml) of blood.
What is a good BAC?
Perfect BAC in accordance with the moderate drinking guidelines is 0.04 - 0.05%.
Hence, A and D is correct option
To learn more about BAC , here
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