After Observing a Laboring Patient,the Experienced Nurse Tells the Student

After observing a laboring patient,the experienced nurse tells the student nurse that a cervical examination will likely confirm the transition phase has begun.What did the experienced nurse observe to suggest this diagnosis?

A) The woman reports that rupture of the membranes has occurred.
B) The woman keeps saying she is so glad to finally be in labor.
C) The contractions are 2 to 3 minutes apart.
D) The woman is irritable and has trouble concentrating.