What fraction of all fatal car crashes in the US involve drunk drivers with a BAC of 0.8% or higher?

The correct answer is based on substantial evidence from traffic safety studies and statistics regarding the involvement of alcohol in motor vehicle fatalities. Approximately one-third of all fatal car crashes in the United States involve drivers with a Blood Alcohol Concentration (BAC) of 0.08% or higher. This is a critical threshold in legal terms, as it is the level at which a driver is considered intoxicated in many jurisdictions.

Understanding this statistic highlights the significant risk that alcohol consumption poses to road safety. It underscores the importance of responsible drinking behaviors, awareness of personal limits when consuming alcohol, and the necessity of utilizing alternative transportation methods when drinking. This data helps inform public safety campaigns aimed at reducing drunk driving incidents.

The other choices do not accurately reflect the data available regarding drunk driving-related fatalities. Knowing these statistics can be pivotal in promoting awareness and encouraging preventative measures.