Your nephew has always had a difficult personality. He is now in early childhood and is very aggressive. Your sister is concerned and asks you for your thoughts. You tell her that . Group of answer choices she should be concerned because aggressive behavior in early childhood is a predictor of aggression in adolescence and adulthood she should not be concerned because most children in early childhood go through this phase and will eventually stop being aggressive she should be concerned, but there is nothing that she can do during early childhood very aggressive children perform at superior levels in school