'The Doll's House' proposes that most of the people feel 'pleased and consider themselves superior' when they demean or insult other people. The story employs the symbol of 'the doll's house' is used to critique the upper class and privileged sections of the society for the mistreatment and insult made to the lower sections of the society. The story displays the cruelty unleashed towards lower class people and conveys a message that the fortunate ones must come forward to help the latter.
D and then if that doesn't work B. If you have anything else to ask me further about my answer (cause I have got to admit it is quite vague) just ask. Hope this helps :) x