According to the U.S.Census Bureau's definition of family,which of the following groups would NOT be considered a family?

A) elderly sisters living together
B) a gay or lesbian couple living together
C) a single father living with his biological children
D) a married couple living with their adopted children

U.S. Census Bureau's

A federal agency responsible for collecting and analyzing data about the American people and economy, such as population demographics, economic indicators, and housing.

Elderly Sisters

Refers to aging female siblings, typically in the later stages of their lives.

Adopted Children

Children who have been legally taken into a family different from their biological one, creating a permanent parent-child relationship.