**Core Concept**
The Human Development Index (HDI) is a composite statistic of **life expectancy**, **education**, and **per capita income** indicators, used to rank countries into four tiers of human development. It is a measure of a country's overall well-being, focusing on the ability of its citizens to lead a long, healthy, and creative life.
**Why the Correct Answer is Right**
The HDI value ranges from 0 to 1, with 1 being the highest level of human development. This value is calculated based on the geometric mean of normalized indices for **life expectancy at birth**, **expected years of schooling**, and **Gross National Income (GNI) per capita**.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the HDI value does not start from a negative value.
**Option B:** This option is incorrect as it is not within the specified range of HDI values.
**Option D:** This option is also incorrect because, although close, it does not accurately represent the full range of HDI values.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that the HDI is used to assess a country's development status, and it can be useful for policymakers to identify areas for improvement in **health**, **education**, and **economic** sectors.
**Correct Answer:** Correct Answer: C. 0 to 1.
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