I think she can see that there is skepticism in terms of the marital roles played by husband and wife. Because of her upbringing, Chopin was able to see through the discrimination of the marital roles. Especially when her husband constantly reminds her of how she should acts or what she is expected to do.
Im going to go with b im not 100% sure tho srry if im wrong <span />
Internal conflict is the point at which a character has to decide to admit to themselves what the issue going on in their head is and to take some sort of action on it. For some characters such as Dante (Dante's Inferno), this is dealing with depression and seeing the things that await him in Hell if he commits suicide. For others, it's working an issue that is a part of their past, such as PTSD flashbacks from war.
I'm not entirely sure how to say where in a story this conflict takes place, as it varies from piece to piece. Hopefully, however, this provides some better understanding of the concept.