When giving narcotic analgesics to mother in labor, the special consideration to follow is:
A Cervical dilatation has already reached at least 8 cm. and the station is at least (+)2
B Uterine contractions are strong and the baby will not be delivered yet within the next 3 hours.
C Uterine contraction is progressing well and delivery of the baby is imminent
D The progress of labor is well established reaching the transitional stage