Which statement is accurate of what research has found regarding parents' marital relationship, their parenting skills and children's well-being?
A) Parenting effectively typically absorbs so much energy that there is little left over to have a happy marriage.
B) Parents in happy marriages who are able to resolve conflict successfully generally have effective parenting skills and children who function well.
C) Parents marital relationship, their parenting skills, and children's well-being are rarely studied together, so we do not have reliable information on how they related to one another.
D) Research has found no connection or effect of parents' marriage on children's well-being until the children are several years old.