Development indicators are used to measure and compare living standards and track progress over time.

• A. Predict earthquakes
• B. Determine sports performance
• C. Set immigration quotas
• D. Measure living standards

Answer: (D)

Development indicators are the tools we use to quantify how people live and to see how that changes over time. They bring together numbers on income, health, education, housing, and access to essential services to create a picture of living standards. By comparing these figures across countries or regions and watching how they shift from year to year, we can tell whether people’s quality of life is improving, staying the same, or getting worse, and we can spot where policies are making a difference. Examples include life expectancy, literacy and school enrollment, income per person, and poverty rates. These indicators focus on well-being and progress, not on predicting earthquakes, measuring sports results, or setting immigration quotas.