What is the legal blood alcohol concentration limit for drivers under 21 in Wisconsin?

In Wisconsin, drivers under the age of 21 are subject to a zero-tolerance policy regarding alcohol consumption. This means that the legal blood alcohol concentration (BAC) limit for individuals in this age group is set at 0.00%. A BAC of 0.00% indicates that any detectable amount of alcohol in the bloodstream is considered illegal for drivers under 21. This strict rule is in place to discourage underage drinking and driving, aiming to enhance safety on the roads.

The other choices represent legal limits applicable to other age groups or scenarios but do not apply to drivers under 21. For instance, a BAC of 0.08% is the limit for drivers aged 21 and older, while lower limits like 0.05% might pertain to specific circumstances or drivers with prior offenses. The 0.10% limit is also relevant under different regulations but does not pertain to the under-21 demographic. Thus, the correct answer reflects Wisconsin's commitment to preventing underage drinking and driving by enforcing stricter laws for younger drivers.