## **Core Concept**
The umbilical cord is a vital structure that provides the necessary blood supply, oxygen, and nutrients to the fetus during pregnancy. After birth, the umbilical cord undergoes a series of changes that eventually lead to its detachment from the neonate. The process of umbilical cord detachment is influenced by the involution of the cord's base.

## **Why the Correct Answer is Right**
The umbilical cord typically dries out and falls off within 1-3 weeks after birth. This process is facilitated by the drying of the cord stump, leading to its separation from the umbilicus. The correct timeframe for the shedding of the umbilical cord is around **1-3 weeks** after birth.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because it does not specify a plausible timeframe for umbilical cord shedding.
- **Option B:** This option suggests a timeframe that is not accurate for the shedding of the umbilical cord.
- **Option D:** This option suggests a prolonged period that is beyond the typical range for umbilical cord shedding.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the umbilical cord usually falls off within **1-3 weeks** after birth. Keeping the area clean and dry can help prevent infection during this period. It's also important to note that delayed cord separation (beyond 3 weeks) can be associated with certain conditions, such as immunodeficiency.

## **Correct Answer:** C. 1-3 weeks.