Final answer:
The blood alcohol concentration (BAC) can increase even after a drinker becomes unconscious.
Step-by-step explanation:
The blood alcohol concentration (BAC) can increase even after a drinker becomes unconscious. BAC is a measure of the amount of alcohol in a person's bloodstream. When someone consumes alcohol, it takes time for their liver to metabolize it and remove it from the body. As long as alcohol remains in the system, the BAC can continue to rise, even if the person is unconscious.