We can start by first making changes in our selves and showing others that it effects them too
Even though he uses a bit of everything, the most correct answer of all would be Indirect characterization, since he characterizes them through their behavior and the stories they tell.
It suggests his wish is excessively strong
Dorothy needs to help rescue the scarecrow and woodman right? She won't call the Witch of the North , she won't either call the wizard of oz or the winkies so that leaves you with one correct answer (the muchkins) she won't call the witch cuz shes evvilll or the wizard he's on the witches side in the story and the winkies are far away when this setting happened --i hope this helps :D
People who have had a traumatic childhood usually develop a mental defence which protects them emotionally from these traumas. This act of defence can be continued into later life even when it is not needed and this is why some people can react badly to being in romantic relationships.
"People maintain the defensive posture that they formed early in life."