Which of the following is true about drinking and driving: A. As long as someone is under the legal alcohol limit, it is safe to drive B. If under 21, it is illegal to drive with any measurable amount of alcohol in one's blood system C. It takes at least 2 drinks before driving is impaired D. Both B and C

The correct option is: B. If under 21, it is illegal to drive with any measurable amount of alcohol in one's blood system

Explanation:

Driving under the influence, also known as the driving while intoxicated or drunk driving, refers to the act of operating a vehicle while intoxicated with alcohol or drugs. It is treated or considered a criminal offense.

The drivers under the age of 21 are strictly not allowed to drive with any measurable amount of alcohol and are subject to zero tolerance law.