Answer:
C. The mother's nutrition before pregnancy
Step-by-step explanation:
Before pregnancy, the habits of the mother are highly important as they cause either a positive or negative impact on the fetus. During pregnancy, the fetus will increase the nutritional demands of the mother. Therefore, they should consume a nutrient-rich diet composed of whole grains, fruits, vegetables, fish, eggs, unsaturated fats, and meat if possible.
Nonetheless, it is fundamental for the mother to always attend doctor's appointments to ensure her diet is appropriate for the growth of healthy placenta and therefore, the health of the baby.
Nutrition is always important, both before, during, and after pregnancy. Therefore, the mother's nutrition before pregnancy (and during pregnancy) is critical to grow a healthy placenta.