Which element of modernist poetry is evident in this excerpt from "Richard Cory" by Edwin Arlington Robinson?

And he was rich—yes, richer than a king—
And admirably schooled in every grace:
In fine, we thought that he was everything
To make us wish that we were in his place.

So on we worked, and waited for the light,
And went without the meat and cursed the bread;
And Richard Cory, one calm summer night,
Went home and put a bullet through his head.

A.
a nontraditional rhyme scheme
B.
the theme of alienation and dissatisfaction
C.
the theme of self-importance and hard work
D.
stanzas of varied length