Macroeconomics is the study of a. individual decision makers. b. international trade. c. economy-wide phenomena. d. markets for large products.

Option (c) is correct.

Explanation:

Macroeconomics refers to the study of the behavior and performance of the economy as a whole. Macro economics takes into account the effect interest rates and a country's productivity.

If mainly focuses on the gross domestic product of a nation, unemployment, inflation, growth rate, etc.

Its main aim is to highlight the issues that are affecting the country's economy, individuals and companies.

Components under macro economics:

(1) Aggregate supply

(2) Aggregate demand

(3) Government spending

(4) Inflation