单选题 A client with hypotonic labor dysfunction is receiving oxytoein augmentation. Her contractions become more frequent and intense. Dilation progresses to 8 cm, but the fetal head remains at station +1. The nurse notes a soft bulge just above the symphysis. Which of the following actions is best?
A. Re-evaluate the fetal presentation.
B. Change the client's position.
C. Offer a narcotic analgesic.
D. Help the client urinate.