Women Often Receive Synthetic Oxytocin to Induce Childbirth or Augment

Women often receive synthetic oxytocin to induce childbirth or augment contractions.What is an important consideration about the use of synthetic oxytocin?

A) It is impossible to mimic its chemical structure,so it may act on other receptors and cause side effects.
B) The synthetic form does not travel down motor neurons,so it is less effective than the natural form.
C) It can be difficult to get the levels just right,so uterine contractions can be too strong.
D) If you fail to simultaneously provide synthetic G protein,the hormone is ineffective.