According to Standard Professional Thinking, Nurses Should Auscultate the Fetal

According to standard professional thinking, nurses should auscultate the fetal heart rate (FHR) :

A) Every 15 minutes in the active phase of the first stage of labor in the absence of risk factors.
B) Every 20 minutes in the second stage, regardless of whether risk factors are present.
C) Before, during, and after a contraction.
D) More often in a woman's first pregnancy.