C. It shows how J* is forcefully determined to defend her husband's honor.
Explanation:
In fact, J* is terribly upset by Nurse's words about Romeo. She thinks that no one has the right to judge Romeo's actions without knowing the reasons that led him to commit such acts. For this reason, the text above shows that J* is willing to defend her husband's honor at any cost, even if someone she trusts, as a nurse, criticizes some of Romeo's acts.
All of J*'s speech is set up to show her dedication to defending her husband from Nurse's hype.
