The correct answers are the following:
Microeconomics
Macroeconomics
Microeconomics is defined as the study of the individual decisions reached by economic agents (households/individuals, firms and public sector entities) in the markets of products services and factors of production.
Macroeconomics is the study of the economy as a whole, using aggregate indicators that are the result of accummulating thousands or millions of the individual decisions studied in the micro approach, and which measure the behaviour of the whole economy of a certain country, region, or even the whole world (depending on the level of aggregation used!)