Answer:
The correct answer is the letter d. how households and firms make choices, how they interact in markets, and how the government attempts to influence their choices.
Step-by-step explanation:
Microeconomics studies the process of choosing individual agents, that is, the individual and the companies. Thus, the main object of microeconomics is the study of companies, for example, their performance in different market structures, such as monopoly, oligopoly etc; and the individual's decision to consume, analyzing his process of choosing a particular good and service. In addition, it analyzes how this interaction between individuals and companies happens, that is, consumption demanded by individuals and supply by companies. In addition, it studies the impacts of government influence on the process of choosing individuals and companies, for example, by creating a tax on some specific good or service.