What task have abusive parents not learned according to Ray Helfer, when a parent learned that, as a child, they had to express themselves in the extreme or that their quiet request for attention from their own parents was ignored, but a tantrum was acknowledged or received a response?

a. Teaching their children how to express themselves effectively
b. Understanding the needs of their children
c. Responding appropriately to their children's emotions
d. Demonstrating healthy communication and conflict resolution
e. Empathizing with their children's feelings