Friar Lawrence's description of the tomb as a “nest of . . . unnatural sleep” contrasts the idea of peaceful rest with the tragic and unnatural circumstances of Romeo and Juliet's deaths. In this context, the most fitting response from the options provided would be:
It shows the body of a man who willingly chose to end his own life.
This choice reflects the theme of tragic love and the implications of their choices, underscoring the idea that the tomb serves as a place of unnatural sleep due to the circumstances surrounding their deaths.