Macroeconomics is the branch of economics that deals with the performance, structure, behavior, and decision-making of an economy as a whole. Instead of focusing on individual markets, it looks at economy-wide phenomena. Its key areas of study include:
Full Employment: Analyzing the overall level of employment and unemployment in the economy.
Aggregate Price Level: Studying the general level of prices and the rate of inflation.
Gross National Product (GNP): Measuring the total economic output of the entire country.
All the options listed are core topics in macroeconomics.