In Assisting with the Two Factors That Have an Effect

In assisting with the two factors that have an effect on fetal status (i.e.,pushing and positioning) ,nurses should:

A) encourage the woman's cooperation in avoiding the supine position.
B) advise the woman to avoid the semi-Fowler position.
C) encourage the woman to hold her breath and tighten her abdominal muscles to produce a vaginal response.
D) instruct the woman to open her mouth and close her glottis, letting air escape after the push.