With Regard to Single-Parent Families in the United States

With regard to single-parent families in the United States,

A) more of these families are the result of divorce than of the mother never having been married.
B) only 5% of children in single-parent homes live with their fathers.
C) the classification of "single-parent household" often includes other adults, such as the unmarried partner of a child's parent.
D) of young people living in two-adult households, almost one-third of them live with only one of their biological parents.