Answer:
The purpose of the last line of the poem is to provide a bitter irony (option A).
Step-by-step explanation:
The excerpt in the picture was taken from the poem "Richard Cory", by Edwin Arlington Robinson. The poem was written while the American people were still suffering due to the depression of 1893. The speaker in the poem is poor, lives waiting for the light, without meat, eating stale bread. He and others just like him wish to be Richard Cory, a wealthy and elegant man. As the last line reveals, however, being rich is not sufficient for Cory to be happy. While the poor keep on living, working, and struggling, Richard Cory ironically kills himself, even though he has a seemingly perfect life.
The poem "Richard Cory" was adapted into a song by Paul Simon and recorded by Simon & Garfunkel.