Maternity Nurses Often Must Answer Questions About the Many,sometimes Unusual,ways

Maternity nurses often must answer questions about the many,sometimes unusual,ways people have tried to make the birthing experience more comfortable.Which information regarding nonpharmacologic pain relief is accurate?

A) Music supplied by the support person must be discouraged because it could disturb others or upset the hospital routine.
B) Women in labor can benefit from sitting in a bathtub,but they must limit immersion to no longer than 15 minutes at a time.
C) Effleurage is permissible,but counterpressure is almost always counterproductive.
D) Electrodes attached to either side of the spine to provide high-intensity electrical impulses facilitate the release of endorphins.