Which of the Following Is True with Respect to Stepfamilies

Which of the following is true with respect to stepfamilies?

A) Children in stepfamilies do nearly as well as children in biological two-parent families.
B) Remarriage and stepfamilies are usually seen as positive events by children.
C) Stepfamilies have been called a "normless norm" because they are very common, yet the expectations, obligations, and rules are vague and confusing.
D) Children in stepfamilies tend to earn lower grades in school than children from two-parent biological families, but there are no differences in rates of depression or emotional problems.
E) Remarriage involves many stressful changes and potential conflicts for children, but far fewer for the adults.