**Core Concept:** Breastfeeding is a crucial aspect of neonatal nutrition and bonding between mother and baby. In normal delivery, the process should be uncomplicated and aligned with the principles of uninterrupted skin-to-skin contact and early initiation of breastfeeding within one hour of birth.

**Why the Correct Answer is Right:**

The correct answer is D because normal delivery involves several key factors that contribute to successful breastfeeding initiation and establishment:

1. **Uninterrupted skin-to-skin contact:** This allows the newborn to initiate the "reflexive suckling" behavior, which is essential for successful breastfeeding.
2. **Early initiation of breastfeeding within one hour of birth:** This ensures that the baby receives colostrum, which is rich in antibodies and provides immunity to the newborn.

**Why Each Wrong Option is Incorrect:**

A) Option A ("breast-feeding should be started when baby's mouth is dry") is incorrect because a newborn's mouth is typically wet due to amniotic fluid, and delaying breastfeeding for a dry mouth may lead to inadequate colostrum intake and compromised immunity for the baby.

B) Option B ("breast-feeding should be started when baby cries") is incorrect because newborns may not cry immediately after birth, and waiting for crying could result in delayed initiation and missed colostrum benefits.

C) Option C ("breast-feeding should be started when baby is active and responsive") is also incorrect because the baby's level of activity and responsiveness may not always indicate the ideal time for breastfeeding initiation, which is crucial for colostrum intake and immunity.

**Clinical Pearl:**

Early initiation of breastfeeding within one hour of birth is essential for the following reasons:

1. **Colostrum benefits:** Colostrum contains antibodies that protect the newborn from infections, leading to improved overall health and immunity.
2. **Physiological benefits:** Breast milk provides the newborn with essential nutrients and helps establish a strong lactation, ensuring adequate nutrition for the mother and baby.

**Correct Answer Explanation:**

During normal delivery, it is crucial to initiate breastfeeding within the first hour after birth. This ensures that the baby receives colostrum, which is rich in antibodies that strengthen the newborn's immunity. Additionally, initiating breastfeeding early helps establish lactation in the mother, providing her with essential nutrients and nourishment.