An opioid analgesic is administered to a client in labor. The nurse assigned to care for the client ensures that which medication is readily available if respiratory depression occurs

An opioid analgesic is administered to a client in labor. The nurse assigned to care for the client ensures that which medication is readily available if respiratory depression occurs?
a) Betamethasone
b) Morphine sulfate
c) Naloxone (Narcan)
d) Meperidine hydrochloride (Demerol).