Lean women with a BMI less than 20 have an increased risks of preterm delivery, and deliver- ing a low-birth weight infant. The correct option among all the options that are given in the question is the first option or option "a". Similarly it is not good to gain excess weight while in the pregnancy stage, as the baby might grow at a larger proportion that required.
The correct answer is that the yolk provides nutrients for the embryo. Hope this helps.
A solute is the part that gets dissolved in the solvent, so the solute is the sugar
