Question

the branch of economics that studies parts of the economy.
microeconomics
social economics
macroeconomics
psychology economics

Explanation:

The question is about identifying the branch of economics that studies parts of the economy. Microeconomics focuses on individual economic units (like households, firms) and specific markets, which are parts of the overall economy. Macroeconomics studies the economy as a whole. Social Economics and Psychology Economics are more interdisciplinary and not the primary branch for studying parts of the economy. So the correct option is Microeconomics.

Answer:

Microeconomics (the option with the orange background labeled "Microeconomics")