Final Answer:
During the course of a pregnancy, the mother's blood supply increases by 30-40%. The answer is option b. 30-40%.
Step-by-step explanation:
This means that during pregnancy, the mother's blood supply experiences a significant increase within the range of 30% to 40%.
The range provided (30-40%) acknowledges that the increase in blood supply during pregnancy varies for different individuals and circumstances. Some women may experience a slightly lower increase, while others may see a more substantial rise within this range.
Pregnancy triggers various physiological changes to support the growing fetus. The increased blood supply is crucial for providing oxygen and nutrients to the developing baby .The maternal body undergoes adaptations to accommodate the needs of the placenta, which acts as the interface between the mother and the fetus. The increased blood supply supports the enhanced metabolic demands.
The elevated blood supply is essential for maintaining a healthy environment for fetal development. It ensures that the growing fetus receives sufficient nutrients and oxygen for optimal growth. Thus, The correct option is (b) 30-40%.