Answer:
A. felicity
D. impertinence
The word "felicity" refers to a high degree of happiness or bliss. On the other hand, "impertinence" refers to the act of being rude or disrespectful. The meaning is similar to words such as insolence and presumption. Therefore, this passage states that Jane is very happy with her career and that she has now stopped being disrespectful to her superiors.