At what BAC is driving under the influence or drunk driving assumed?
Answer: D — .08
The legal limit for blood alcohol concentration (BAC) while driving is .08 grams per deciliter in most states. This is considered to be the point at which a person is considered to be legally impaired and at risk for drunk driving. Options A, B, and C are all lower BAC levels, which may still impair driving ability but are not considered the legal limit for DUI. Therefore, D is the correct answer.