Which of the following is true regarding driving under the influence of alcohol?

Driving under the influence of alcohol is governed by specific laws regarding blood alcohol concentration (BAC) levels, which measure the amount of alcohol in a person's bloodstream. It is established that a BAC of 0.08% or higher is considered legally impaired in most jurisdictions, including Maryland. This legal threshold means that individuals with a BAC at or above this level are subject to legal penalties for impaired driving.

This understanding is crucial because alcohol impairs several critical faculties needed for safe driving, including judgment, reaction time, and coordination. Therefore, option C highlights a key legal safety measure aimed at reducing alcohol-related accidents and promoting road safety.

In contrast, the other options do not accurately reflect the realities of alcohol consumption and its impact on driving ability or the law. Therefore, option C is the definitive statement regarding driving with alcohol in the system.