Which of the following would likely exempt drivers from attending traffic violator school?

Committing serious offenses, such as DUI, typically results in more severe penalties and legal consequences as opposed to minor traffic violations. When a driver is charged with serious violations, the law often mandates that they face stricter penalties, which may include mandatory court appearances, higher fines, or license suspensions, rather than allowing for attendance in traffic violator school as a remedial measure. Traffic violator school is generally designed for less serious infractions to help educate drivers on safe driving practices and reduce their chances of future violations. Therefore, appropriate legal protocols for serious offenses do not usually incorporate options like traffic school, making this answer correct.

The other scenarios, like having no prior citations, driving a commercial vehicle, or being under 18 years old, may have conditions under which someone could potentially attend traffic school if they commit a less severe offense. However, these factors do not inherently lead to exemptions from traffic violator school in the same way that serious offenses do.