Answer:
The answer is indeed letter D) Nora’s depiction as an oppressed innocent reveals the theme that the oppressed live unsatisfying lives.
Explanation:
In Ibsen's play "A Doll's House", Nora is married to Torvald Helmer, an abusive husband who treats her as his inferior in every sense. Nora is constantly told what to do, what to think, and how to behave by her husband. He believes it is his duty to provide and protect his family at all costs simply because he is a man. Helmer shows attitudes related to the savior complex, acting as if Nora would be nothing without him, and getting to the point of wishing she were in danger so that he could rescue her.
Nora is obviously afraid of her husband; she has no freedom to do anything on her own, even if it is with the goal of helping him. She lives a miserable life that becomes even sadder when a secret of hers is about to be revealed. When Helmer finds out that Nora never told him about a loan she took from the bank where he works, he feels betrayed. He expected her to be loyal and submissive. He tells her they won't get divorced, but that he won't allow her to raise their children. Having nothing to lose and a lot to gain, Nora chooses to free herself. At the end of the play, she leaves her husband.