A Pregnant Patient Tells the Nurse That She Has Been

A pregnant patient tells the nurse that she has been nauseated and vomiting.The nurse explains that hyperemesis gravidarum is distinguished from morning sickness because:

A) hyperemesis gravidarum usually lasts for the duration of the pregnancy.
B) hyperemesis gravidarum causes dehydration and electrolyte imbalances.
C) sensitivity to smells is usually the cause of vomiting in hyperemesis gravidarum.
D) the woman with hyperemesis gravidarum will have persistent vomiting without weight loss.