Answer:
C) overarching message
Explanation:
It is C because the theme is defined as the lesson, moral, or message of a story.
Dear Romeo,
I never thought that my life wasn't being lived until I met you. I came to the realization that my life is now just beginning as we progress in a series of love festivities. I will never forget you, our souls are forever intertwined.
Love, Juliet
He says that we must not forget the terrors of the Holocaust, because if we do, we would be accomplices, we would also be guilty as much as the ones who had committed the crimes. That is why we should keep it in our memories forever.