The answer for this i think is subordnate clause
Monsignor Darcy
One day, Amory receives a letter from his old mentor, Monsignor Darcy.
The mood is somber and sad.
The them of the passage is the sudden passing of a woman and a young one at that who had her whole life ahead of her. The sadness is amplified with the knowledge that that she left a husband who barely survived the war and that her death was sudden and unexpected.
D it explains details about the poem to find out the genre.
Focused more on giving, it’s better to give than receive