Elizabeth Is a Pregnant Patient Who Tells Her Physician That

Elizabeth is a pregnant patient who tells her physician that she has been following a low - carbohydrate diet so that she does not gain too much weight during pregnancy. Her physician recommends including carbohydrates into her diet. What purpose do carbohydrates serve during pregnancy?

A) They provide fuel for the fetal brain .
B) They support blood flow to the placenta.
C) They prevent neural tube defects.
D) They support fetal lung development prior to birth.