Observing Communication Patterns in Adoptive and Biologically- Related Two-Parent Families,yielded

Observing communication patterns in adoptive and biologically- related two-parent families,yielded four communication patterns with similar proportions of adoptive and nonadoptive families in each,but difficulties in communication

A) were more significantly related to teens' problems in biologically related families.
B) had few associations with problems in either group.
C) were more predictive of teens' problems in adoptive families.
D) were ignored by parents.