What evidence from the text best support the theme that men are expected to be providers and protectors

The line where Hélmer says that “you will see that I am a man enough to take everything upon myself” clearly states the belief that men are expected to be providers and protectors. Thus, option B is correct.
A protector is a person or can be an animal that can protect or defend someone from any harm that comes in the way. That person acts as a shield and takes care of you, acting as a guardian.
In this stanza, Hélmer is telling to Nora that she need not worry about a single thing and that all will be done by him, he is the protector and provider and will be taken care of by him.
Then he defines the definition of a man that is being taught to him at a very early age in life that he needs to be the one and a woman should not do this type of work or even let her do it. Therefore, option B is the correct option.
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