On the First Day of a Client's Alcohol Detoxification, Which

On the first day of a client's alcohol detoxification, which nursing intervention should take priority?

A) Strongly encourage the client to attend 90 Alcoholics Anonymous (AA) meetings in 90 days.
B) Educate the client about the biopsychosocial consequences of alcohol abuse.
C) Administer ordered chlordiazepoxide (Librium) in a dosage according to protocol.
D) Administer vitamin B₁ to prevent Wernicke-Korsakoff syndrome.