The population of India will be studied under which branch of economics?

Macroeconomics

The correct answer is option 2: Macroeconomics

Microeconomics (Option 1) deals with individual units like consumers, firms, and markets, not entire population studies.

Macroeconomics (Option 2) focuses on aggregate economic variables, such as national population, employment levels, and economic growth, making it the correct choice for studying India's population.

Positive Economics (Option 4) refers to the objective, fact-based analysis of economics (what "is").