Answer:
The correct answer is option a. "20".
Step-by-step explanation:
Most of the times having a low BMI represents no risk for pregnant woman. However, a BMI less than 20 during pregnancy is related with an increased risk of miscarriage. premature birth and low-birth weight infant. It is recommended that woman achieved a BMI value around 24 before and during pregnancy to lower the risks for the baby or for the mother.