The answer is C- It is the beginning of open discussion and deeper understanding of others
Explanation:
According to the passage, the underlined text is important to the author’s future legacy because it reinforces the idea that conversation is the beginning of open discussion and deeper understanding of others.
It will enable both parties understand theirselves better.
This does not seem like a right or wrong answer but is just a personal question that applies to you. It's asking you to check whichever statements apply to you personally unless I'm missing something.