While Evaluating an External Monitor Tracing of a Woman in Active

While evaluating an external monitor tracing of a woman in active labor,the nurse notes that the fetal heart rate (FHR) for five sequential contractions begins to decelerate late in the contraction,with the nadir of the decelerations occurring after the peak of the contraction.The nurse's first priority is to:

A) Change the woman's position
B) Notify the health care provider
C) Assist with amnioinfusion
D) Insert a scalp electrode