Final answer:
In a class system, individuals are placed into different groups based on factors such as wealth, income, education, and occupation. The most commonly recognized system in the United States includes three primary classes: the upper class, the middle class, and the lower class.
Step-by-step explanation:
In a class system, individuals are placed into different groups based on factors such as wealth, income, education, and occupation. There are multiple ways of categorizing social classes, but for the purposes of this question, the most commonly recognized system in the United States includes three primary classes: the upper class, the middle class, and the lower class. Each of these classes has several subcategories, and wealth is a major determinant in distinguishing between the classes.