A sedative-hypnotic drug that is not approved in the United States and is often involved in date-rape cases is:

A. Amphetamines Amphetamines are stimulants, not sedative-hypnotics. They are used medically for ADHD and narcolepsy, not associated with date rape. B. Rohypnol Rohypnol (flunitrazepam) is a potent benzodiazepine, not approved in the U.S., and often used illicitly in drug-facilitated sexual assault. C. Xanax Xanax (alprazolam) is a prescription benzodiazepine used in the U.S. for anxiety. While it has sedative effects, it's not specifically linked to the same risk profile as Rohypnol in date rape cases. D. Dalmane Dalmane (flurazepam) is a sleep aid benzodiazepine, not typically involved in illicit use or date-rape scenarios.