Studies show that when parents report more intimacy and better communication in their marriage,children benefit by the fact that

A) parents are more affectionate to their children.
B) there is an improvement in parenting.
C) children are healthier.
D) All of these.

When parents report more intimacy and better communication in their marriage, they are likely to be more affectionate with their children and have an improvement in their parenting skills. This, in turn, leads to a healthier environment for the children, benefiting them in multiple ways. Thus, all the given options are correct.