Final answer:
A person with a BAC of .15 is considered severely intoxicated, which is nearly double the .08 limit, signifying legal intoxication. At this level, there is significant impairment and a high risk of harm.
Step-by-step explanation:
If a person's blood alcohol concentration (BAC) reaches a level of .15, it indicates that the person is severely intoxicated. In most jurisdictions, a BAC of 0.08% is considered legally intoxicated, and a BAC of 0.15% is nearly double that legal limit. The effects of such a high BAC may include significant impairment of motor coordination and decision-making abilities, as well as alterations in mood and behavior. The risk of harm to oneself and others increases substantially with such a level of intoxication.
Alcohol affects different people in various ways, and factors like age, sex, body weight, and tolerance can influence how a person feels and behaves when they consume alcohol. However, a BAC of .15 is well above the threshold for legal intoxication and represents a level at which a person's cognitive, physical, and sensory capacities are likely to be substantially impaired, making activities such as driving extremely dangerous.