Why Must Volume Expansion Occur BEFORE maternal Nutrient Stores Accumulate

Why must volume expansion occur BEFORE maternal nutrient stores accumulate?

A) In order to support large gains in fetal weight
B) In order to provide the fetus with sufficient energy,nutrients,and oxygen
C) In order to provide the mother with plenty of fluids
D) In order to dilute the high concentration of nutrients in pregnant women
E) In order to make room for growing organs