In the passage from "A Doll's House", Nora is B) Glad that she finally has money to spend on gifts for the holidays.
After arriving, Nora is very eager to show her husband what she has bought for Christmas. Even though Helmer does not agree with such spending of money, she insists on him not to worry so much since he will earn a lot more money the next year. She excuses herself by explaining him that it is the first Christmas they did not need to economize. So, she is persuading him to relax about it.
It could be 2 answers. Either 'In fact" or "In other words"
Pick the one that sounds better to you
Yes, it is true that -ing and un- have grammatical meaning.
Hope this helps! :)
