Which statement is true about the impairment observed in a sleep-deprived individual compared to an intoxicated individual?

• A. A sleepless person is always more impaired than an person with a blood alcohol concentration (BAC) of 0.08.
• B. Impairment after 17-24 hours of continuous wakefulness can be comparable to, and in some tasks worse than, impairment at a BAC of about 0.08.
• C. Sleep loss and alcohol intoxication produce entirely different effects, so they cannot be compared.
• D. Alcohol intoxication always produces greater driving and cognitive impairment than sleep loss.

Answer: (B)