The correct answer is B. Microeconomics involves the study of how households and firms make choices.
Explanation:
Microeconomics studies the way in which economic decisions are made by the different economic agents (individuals, families, small, medium and large companies, the State, companies of different sectors and sectors, charities, civil or religious associations, etc.)
Each economic agent can interpret the reality and make decisions in a different way. Each of them generally seeks to obtain the optimal result according to their own interests by analyzing the different political or socio-economic situations taking into account what is expected that the rest of the agents could do in the same situation. It can involve the analysis of economic policy.
Macroeconomics study phenomenals that involve the study of the economy of a zone, country or group of countries, considered as a whole and using collective or global figures such as national income, employment, investments or imports and exports. Most economic theories arise from the generalization of aspects previously developed by the microeconomics.
The macroeconomic analysis not only evaluates the economic policy proposed or carried out by governments but also constitutes a fundamental source both in the conceptual and numerical way that governments consider when delineating the different economic policies.