By what percent have alcohol traffic fatalities been reduced since 1975 due to the 21 minimum drinking age?

The correct answer reflects the significant impact that raising the minimum legal drinking age to 21 has had on reducing alcohol-related traffic fatalities. Research has shown that the increase in the legal drinking age has decreased the number of young people driving under the influence of alcohol, thereby contributing to a notable decline in accidents and fatalities.

In various studies conducted over the years, data indicated that states which implemented the 21 minimum drinking age saw substantial reductions in traffic fatalities among the 18 to 20 age group, where the reduction is around 13%. This statistic is a clear indication of how policy changes can effectively influence public safety and reduce risk factors associated with driving under the influence.

The other response options reflect higher percentages that are not supported by the most widely accepted data. While there has certainly been progress in addressing alcohol-related traffic deaths since 1975, a percent increase of 41%, 68%, or even 25% does not align with the empirical evidence provided by research on the effects of the drinking age law.