Final answer:
At full term, the amniotic sac can hold about 600 to 800 milliliters of fluid, which equates to approximately 1-2 liters, choice B.
Step-by-step explanation:
The question asks, at full term, how much fluid can the amniotic sac hold. The correct answer is B. 1-2 liters. Specifically, at about 34 weeks after conception, the amniotic fluid is highest in volume, approximately 800 ml, and this amount reduces to around 600 ml by the time the baby reaches full term at 40 weeks of gestational age. The amniotic sac and fluid provide a cushion and allow the fetus to move more freely, as well as being vital in the development by providing necessary proteins, carbohydrates, lipids, and other components.