**Question:** Extra energy needed per day during pregnancy -

A. 200 kcal
B. 300 kcal
C. 500 kcal
D. 700 kcal

**Core Concept:** During pregnancy, the body requires additional energy to support the growing fetus, placenta, and increased maternal functions.

**Why the Correct Answer is Right:** The correct answer, 300 kcal, represents the additional energy required for a healthy pregnant woman with normal weight gain during pregnancy. This energy is used for cellular growth, tissue repair, and increased blood volume, among other physiological changes.

**Why Each Wrong Option is Incorrect:**

A. 200 kcal is too low and may not meet the increased energy demand of pregnancy, potentially leading to maternal malnutrition and adverse outcomes for the fetus.
B. 700 kcal is too high and can lead to maternal obesity and gestational diabetes, which increases maternal and neonatal morbidity and mortality.
C. 500 kcal is also too high and may cause maternal obesity, gestational diabetes, and other complications.

**Clinical Pearl:** The 300 kcal recommendation is based on the average energy expenditure increase during pregnancy, but individual needs may vary depending on factors like body mass index, physical activity, and stage of pregnancy. Adequate nutrition and regular monitoring of weight gain are essential during pregnancy to ensure optimal maternal and fetal outcomes.

**Correct Answer:** B. 300 kcal (Option B is the correct answer, representing the average additional energy requirement during pregnancy.)