With Regard to the Care Management of Preterm Labor,nurses Should

With regard to the care management of preterm labor,nurses should be aware that:

A) Because all women must be considered at risk for preterm labor and prediction is so hit and miss,teaching pregnant women the symptoms probably causes more harm through false alarms
B) Braxton Hicks contractions often signal the onset of preterm labor
C) Because preterm labor is likely to be the start of an extended labor,a woman with symptoms can wait several hours before contacting the primary caregiver
D) The diagnosis of preterm labor is based on gestational age,uterine activity,and progressive cervical change