The correct answer is A. True.
Blood Alcohol Concentration (BAC) is a measurement of the amount of alcohol in a person's bloodstream. A BAC of 0.08% is the legal limit for driving in many places, and studies have shown that drivers with a BAC at or above this level are significantly impaired and more likely to be involved in traffic accidents.
According to various traffic safety studies, it is reported that drivers with a BAC of 0.08% or higher are involved in approximately one-third (1/3) of all traffic fatalities. This statistic underscores the dangers of impaired driving and the critical impact of alcohol on road safety. Hence, the statement in the question is true.