Twelve-Year-Old Lacey and Her Mother Are a Two-Person Family

Twelve-year-old Lacey and her mother are a two-person family. Mother's long-term boyfriend has just moved in with them. What effect will the move have on Lacey?

A) Chances are about 80% that Lacey will be the victim of child abuse.
B) Lacey will almost certainly show an increase in misbehavior at school.
C) If Lacey has a warm, loving relationship with him, she will probably adjust well.
D) When she reaches adulthood, Lacey will probably have trouble forming stable relationships with others.