To solve this problem, we need to analyze the given statements:$\newline$Assertion (A): Breast-feeding during the initial period of infant growth is recommended by doctors for bringing a healthy baby.$\newline$Reason (R): Colostrum contains several antibodies absolutely essential to develop resistance for the newborn baby.$\newline$Let's break down each statement:$\newline \bullet$Assertion (A):$\newline$ - Breast-feeding is highly recommended by healthcare professionals during the early stages of an infant's life.$\newline$ - It provides essential nutrients and supports the overall health and development of the baby.$\newline$ - Hence, Assertion (A) is correct.$\newline \bullet$Reason (R):$\newline$ - Colostrum is the first form of milk produced immediately following the delivery of the newborn.$\newline$ - It is rich in antibodies, particularly immunoglobulin A (IgA), which plays a crucial role in building the infant's immune system.$\newline$ - These antibodies help protect the newborn from infections and diseases.$\newline$ - Hence, Reason (R) is correct.$\newline$Now, let's determine if (R) is the correct explanation of (A):$\newline \bullet$The reason explains why breast-feeding is recommended, as the antibodies in colostrum are vital for the infant's immune defense.$\newline \bullet$It directly supports the assertion by highlighting the health benefits provided by breast-feeding.$\newline$Therefore, (R) is indeed the correct explanation of (A).$\newline$Thus, the most appropriate answer is Option 3: Both (A) and (R) are correct and (R) is the correct explanation of (A).