Choose the closest paraphrased version after the following sentence or the italicized part.
This kind of vacillation not only impairs the parents' ability to set limits, it also sours the parent-child relationship to some degree.( )
A.正确答案DParents are in a dilemma as to whether to set limits or give full freedom to children.
B.Saying no to children is an obstacle to the improvement of the parent-child relationship.
C.The parent-child relationship depends on both parents' ability and children's cooperation.
D.Parents' hesitation weakens their parental authority and relationship with their children.