I don't get this question. Can someone clarify it to me,please?

I believe your interpretation of the question is correct. It asks you to consider how commenting on a serious topic like racism in a calm demeanor may or may not help your message be taken more seriously. Consider this: How would people respond to her message if she was howling and shouting it angrily, vs speaking in a calm, calculated fashion. How does her calm color the words. does it help make them more real or easy to take to heart?