A Blood Alcohol Content (BAC) of _____ is evidence of intoxication.

0.08%
0.05%
0.8%
0.10%
Explanation

Legally, drivers age 21 or older are considered to be driving under the influence (DUI) if their blood alcohol content (BAC) is 0.08 percent or higher. This level of BAC is widely recognized as evidence of intoxication and impairment, significantly increasing the risk of accidents on the road.

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