What is ironic about the ending of the poem "richard cory" by edwin arlington robinson?

a) although cory is rich and of an elite class, he kills himself because he is unhappy.
b) although cory is unhappy, he kills himself because the townspeople envy his life.
c) cory is rich and of an elite class, so he lives his life without any problems or concerns.
d) cory donates all of his money to the working class because he understands its struggles.

the narrator is a first person, participant one, who describes in the simple past tense important and difficult events in his earlier life. he also provides temporal markers as the month (january) and the time (12: 30 pm). finally the account of his experience is very detailed, to the extent that a participant narrator would talk the same way about his experiences. a good example of such detail is the mention of the “bovril ration” which historically was a native american food adopted by european explorers in arctic and antarctic regions due to its high level of calories.