Answer:
C: Both A and B are true
Explanation:
From DUI(Driving under influence) laws in most states in America, the DUI rule for underage individuals is that, it's illegal for an under 21 individual to have a blood alcohol content (BAC) of 0.08% or higher.
Now, in many states, it could a bit flexible with some considerations like, having the BAC to be as low as 0.02% or below or even having zero tolerance as the case may be.
Many of the states also have lose laws as well to this effect.
However, looking at the options, the correct ones will be options A & B because most states exhibit either options.