A Patient Reports,"Last Night I Had Several Mixed Drinks at a Party.When

A patient reports,"Last night I had several mixed drinks at a party.When I got home,I had difficulty falling sleep.I made two cups of herbal tea with valerian.This morning,I feel very groggy and have a headache." The nurse should explain that:

A) valerian should be delayed at least 1 hour after using alcohol to avoid side effects.
B) valerian may increase sedation from other central nervous system depressants.
C) herbal teas often cause nervous system side effects such as headaches.
D) these feelings are actually a hangover from excessive alcohol intake.