What characterizes a nuclear family?

• A. Two parents and their children, with no other relatives or nonrelatives present.
• B. Parents who live in separate households.
• C. A family with multiple generations living together.
• D. A family where grandparents are primary caregivers.

Answer: (A)

The concept being tested is the structure of a nuclear family: two parents and their children living together in one household, with no other relatives or nonrelatives present. This arrangement centers on a small, immediate family unit that functions as the primary household for the children.

Why this fits best: it matches the standard definition of a nuclear family, where the core household comprises just the two parents and their dependent children, without additional adults or extended-family members living in the same home.

If the parents live in separate households, that describes a different family form, not the single, connected unit of a nuclear family. When multiple generations live together, the family is considered extended. And when grandparents are the primary caregivers, that describes a grandparent-led or multigenerational arrangement, which is also not the classic nuclear family structure.