## **Core Concept**
The Physical Quality of Life Index (PQLI) is a measure used to assess the quality of life or well-being of a country. It takes into account literacy rate, infant mortality rate, and life expectancy at age one. The PQLI is an attempt to measure the quality of life or well-being of a country.

## **Why the Correct Answer is Right**
The PQLI score is calculated on a scale that ranges from 0 to 100. A higher score indicates a better quality of life. The PQLI is often used to compare the well-being of different countries. The correct range for PQLI is between 0 and 100.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This range seems too narrow and does not cover the full range of possible PQLI scores.
- **Option B:** This option suggests a range that exceeds the typical scoring system for PQLI.
- **Option D:** This range seems too broad and does not accurately reflect the scoring system for PQLI.

## **Clinical Pearl / High-Yield Fact**
A key fact to remember is that PQLI scores are often used in a comparative context to evaluate the effectiveness of health and education policies across different countries. A score of 100 represents the best possible outcome.

## **Correct Answer:** . 0-100