What literary device is apparent in the title of the poem "War is Kind," and what effect does it have on the reader's interpretation?

AThe simile compares war to kindness, this makes the reader realize the poem is absurd.

BThe personification of war as kind makes a reader consider the positive aspects of warfare.

CThe hyperbole exaggerates the actual nature of war, this makes the reader laugh.

DThe irony is that war is not commonly thought of as kind, this makes the reader curious.