A Laboring Client Asks the Nurse,"Why Does the Physician Want

A laboring client asks the nurse,"Why does the physician want to use an intrauterine pressure catheter (IUPC) during my labor?" The nurse would accurately explain that the best rationale for using an IUPC is:

A) The IUPC can be used throughout the birth process.
B) A tocodynamometer is subject to artifacts.
C) The IUPC provides more accurate data than does the tocodynamometer.
D) The tocodynamometer can only be used after the cervix is dilated 2 cm.