Answer:
Nuclear Family.
Step-by-step explanation:
Nuclear family is the form most recognizable to the people living in the United States. It is also called a conjugal family or elementary family. This form is usually made of two parents, a married couple and also their children. Number of children is not necessarily defined. Some theorists argue that this is the most basic form of social organization.
Nuclear family is in contrast with the single-parent families or extended families. Form of nuclear family is the necessary to the existence of capitalist mode of production.