BAC (Blood Alcohol Concentration) is used to measure a person's:
a. Height
b. Weight
c. Age
d. Tolerance level
b. Weight
Explanation: Measuring a person's Blood Alcohol Concentration, or BAC, is done so by measuring his/her body weight. For example, a 185 lbs. male can consume 3 cans of beer for one hour, and one additional can of beer for each hour afterward without feeling inebriated (drunk.) However, as a professional truck driver, its best to avoid the consumption of alcohol at all costs while "on the clock."
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