**Core Concept**
The question is related to **anthropometric indices**, which are used to assess health and nutritional status. These indices include various measurements such as body mass index (**BMI**), **waist-to-hip ratio**, and **Ponderal index**.

**Why the Correct Answer is Right**
The **Ponderal index** is a measure of leanness or corpulence of a person calculated as a relationship of mass to height. It is calculated by dividing height (in centimeters) by the cube root of weight (in kilograms). This index provides a more accurate measure of **lean body mass** compared to **BMI**.

**Why Each Wrong Option is Incorrect**
**Option A:** is incorrect because it refers to a different formula.
**Option B:** is also incorrect as it does not represent the correct formula for the **Ponderal index**.
**Option C:** and **Option D:** are not relevant to the given formula.

**Clinical Pearl / High-Yield Fact**
The **Ponderal index** is particularly useful in assessing the nutritional status of infants and children, as it provides a more sensitive measure of **growth and development** compared to **BMI**.

**Correct Answer:** D. Ponderal index