What is the main "theme" of the following piece: "The Death of the Ball Turret Gunner," by Randall Jarrell.
From my mother's sleep I fell into the State, And I hunched in its belly till my wet fur froze.
Six miles from earth, loosed from its dream of life, I woke to black flak and the nightmare fighters.
When I died they washed me out of the turret with a hose.

A He is dreaming
B The fact that his death is of no importance
C He is flying from Earth
D He is having a nightmare